# Best Application Performance Monitoring (APM) Tools - Page 3

## How Many Application Performance Monitoring (APM) Tools Products Does G2 Track?

**Total Products under this Category:** 216

### Category Stats (Aug 2026)

- **Average Rating:** 4.44/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** OpManager Nexus (+0.77%) - Among all products in this category, OpManager Nexus recorded the largest rating increase compared to last month

_Last updated: August 01, 2026_

## How Does G2 Rank Application Performance Monitoring (APM) Tools Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 16,300+ Authentic Reviews
- 216+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

## G2 Grid® for Application Performance Monitoring (APM) Tools
 ![G2 Grid® for Application Performance Monitoring (APM) Tools plotting products by satisfaction and market presence](https://www.g2.com/categories/application-performance-monitoring-apm/grids.png?focus%5B%5D=27540&focus%5B%5D=3824&focus%5B%5D=2056&focus%5B%5D=139215&focus%5B%5D=68738&focus%5B%5D=17313&focus%5B%5D=17351&focus%5B%5D=16779)

Highlighted products: IBM Instana, Datadog, Dynatrace, New Relic, LogRocket, Sentry, OpManager Nexus, and Coralogix.

Underlying data: [Grid® JSON](https://www.g2.com/categories/application-performance-monitoring-apm/grids.json?focus%5B%5D=ibm-instana&focus%5B%5D=datadog&focus%5B%5D=dynatrace&focus%5B%5D=new-relic&focus%5B%5D=logrocket&focus%5B%5D=sentry&focus%5B%5D=opmanager-nexus&focus%5B%5D=coralogix)

**Sponsored**

### Sentry

Sentry is an application monitoring and error tracking platform that helps developers identify, debug, and resolve software issues in production environments across web, mobile, desktop, game, and AI-powered applications. The platform captures errors, crashes, and performance problems in real time, providing developers with stack traces, user context, and diagnostic data needed to reproduce and fix bugs. Sentry supports over 100 programming languages and frameworks, including JavaScript, Python, Java, Ruby, PHP, Go, React, Django, and mobile platforms like iOS and Android. Core monitoring capabilities: - Error tracking groups similar errors into issues, showing frequency, affected users, and the exact code location where problems occur - Performance monitoring traces requests through distributed systems to identify slow database queries, API bottlenecks, and code-level performance problems - Session Replay records user interactions leading up to errors, capturing clicks, network activity, and console logs for easier reproduction - Logs captures structured log data from your applications alongside errors and traces, enabling search and filtering by message content, severity level, and custom attributes - AI observability provides visibility into LLM applications, AI agents, and Model Context Protocol servers, tracking prompts, model calls, tool usage, and token consumption Developers integrate Sentry by installing an SDK and adding a few lines of code to their application. The platform automatically captures unhandled exceptions, while developers can manually track custom errors and performance metrics. Sentry processes events in real time, sending alerts through Slack, email, PagerDuty, or other notification channels when issues occur. Additional features and capabilities: - AI-powered debugging through Seer, which analyzes errors to identify root causes and suggest code fixes with high accuracy - Distributed tracing that follows requests across microservices, serverless functions, and third-party APIs to pinpoint failure points - Custom dashboards and alerts for monitoring specific metrics, error rates, or performance thresholds important to each team - Profiling tools that provide code-level visibility into where time is being spent in production, identifying slow functions, call stacks, and performance regressions across backend services and frontend/mobile user flows - Workflow integrations with GitHub, Jira, GitLab, Azure DevOps, and other development tools to create tickets or link errors to commits automatically The platform serves development teams at organizations ranging from individual developers to large enterprises. More than 100,000 organizations use Sentry, processing billions of error events daily. Sentry offers both cloud-hosted and self-hosted deployment options, with pricing tiers based on event volume. A free tier supports small projects and individual developers.

[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=168&secure%5Bchosen_at%5D=2026-08-04T21%3A35%3A33Z&secure%5Bdisplayable_resource_id%5D=168&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=168&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=17313&secure%5Bresource_id%5D=168&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fapplication-performance-monitoring-apm%3Fpage%3D3&secure%5Btoken%5D=aa2eaab9237b159a3dbff34196b829fd9e6164c4ad70786388069ef77e5cc67a&secure%5Burl%5D=https%3A%2F%2Fsentry.io%2Flp%2Fapplication-performance-monitoring%3Futm_source%3Dg2%26utm_medium%3Dreview-site%26utm_campaign%3Dapm-fy27q1-evergreen%26utm_content%3Dstatic-ad-apm-trysentry&secure%5Burl_type%5D=custom_url)

### [Catchpoint](https://www.g2.com/products/catchpoint/reviews)

The Internet relies on Catchpoint Global 5000 companies, top online retailers, financial services, cloud infrastructure and services companies, and xSPs trust Catchpoint’s Internet Performance Monitoring (IPM) to detect and resolve internal or external issues across the Internet stack before they impact customers, employees, or digital experiences. Offering Internet Synthetics, RUM, BGP, Heartbeat Monitoring, Distributed Tracing, and performance optimization with high-fidelity data and flexible visualizations, Catchpoint is powered by the world’s largest active agent network to provide real-world user experience visibility and internet stack insights that complement Application Performance Monitoring (APM) to give IT Ops team instant awareness of incidents, root cause insights, and quick resolution.

**Average Rating:** 4.5/5.0

**Total Reviews:** 109

#### How Do G2 Users Rate Catchpoint?

- **Second by Second Metrics:** 7.9/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 8.3/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 7.8/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.3/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Catchpoint?

- **Seller:** [LogicMonitor](https://www.g2.com/sellers/logicmonitor)
- **Company Website:** www.logicmonitor.com
- **Year Founded:** 2007
- **HQ Location:** Santa Barbara, CA
- **Twitter:** @logicmonitor  
12,430 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0575241055ce06002a2f1fd1e29a1c2520416578fcf099eef91facac629c652e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1165219%2F&secure%5Burl_type%5D=linkedin_company_website)  
1,226 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Software Engineer
- **Top Industries:** Information Technology and Services, Financial Services
- **Company Size:** 65% Large, 22% Medium

#### What Do G2 Reviewers Say About Catchpoint?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **real-time issue detection** of Catchpoint, enabling quick troubleshooting and improved performance management.
- Users appreciate Catchpoint for its **effective monitoring capabilities** , providing real-time visibility and proactive issue detection.
- Users value the **exceptional customer support** of Catchpoint, noting its quick and helpful responses during troubleshooting.
- Users appreciate the **real-time alerting features** of Catchpoint, which enhance efficiency in identifying performance issues swiftly.
- Users value the **real-time alerts** from Catchpoint, enabling swift issue detection and enhancing overall performance monitoring.

##### Cons

- Users find the **pricing too high** and hope for more transparency and flexibility in costs.
- Users find the **difficult learning curve** of Catchpoint challenging, especially for those unfamiliar with its extensive features.
- Users find the **learning curve steep** , requiring time to master Catchpoint's extensive features and setup process.
- Users find the **pricing structure** of Catchpoint to be high and less flexible for smaller teams.
- Users find the **initial setup complex** , requiring time to explore features before enjoying the powerful capabilities of Catchpoint.

#### What Are Recent G2 Reviews of Catchpoint?

**["Ensuring smooth digital user experience"](https://www.g2.com/survey_responses/catchpoint-review-11661314)**

**Rating:** 4.0/5.0 stars

_— Pradyumn G._

[Read full review](https://www.g2.com/survey_responses/catchpoint-review-11661314)

**["Software buyers want to hear more about Catchpoint."](https://www.g2.com/survey_responses/catchpoint-review-11657918)**

**Rating:** 5.0/5.0 stars

_— NAMAN GUPTA ._

[Read full review](https://www.g2.com/survey_responses/catchpoint-review-11657918)

#### What Are G2 Users Discussing About Catchpoint?

- [How has Catchpoint supported your digital experience monitoring, and what features do you find most valuable?](https://www.g2.com/discussions/how-has-catchpoint-supported-your-digital-experience-monitoring-and-what-features-do-you-find-most-valuable)
- [What is synthetic monitoring in Catchpoint?](https://www.g2.com/discussions/what-is-synthetic-monitoring-in-catchpoint) - 1 comment
- [Is SaaS a Catchpoint?](https://www.g2.com/discussions/is-saas-a-catchpoint)
- [What does Catchpoint mean?](https://www.g2.com/discussions/what-does-catchpoint-mean)
- [What is Catchpoint used for?](https://www.g2.com/discussions/what-is-catchpoint-used-for)

### [Pandora FMS](https://www.g2.com/products/pandora-fms/reviews)

Pandora FMS is a unified monitoring and observability platform designed to consolidate visibility, alerting, reporting, and automation across heterogeneous IT environments. Instead of combining multiple point tools for networks, servers, applications, and cloud services, Pandora FMS centralizes data collection and operational workflows in a single console, reducing integration effort and operational complexity in on-premise, hybrid, and multi-cloud architectures. The platform collects telemetry using multiple methods, including agents, remote checks, standard protocols (e.g., SNMP/WMI), APIs, and log/event ingestion. This enables teams to monitor infrastructure and services end-to-end, correlate signals, and maintain consistent alerting policies and dashboards across distributed estates. Pandora FMS also supports capacity and trend analysis to anticipate resource constraints and identify recurring patterns, and includes AI-assisted capabilities for anomaly detection and automated thresholds to surface hard-to-spot operational signals. Pandora FMS is extensible through a large plugin ecosystem (500+ plugins and integrations), covering a wide range of enterprise and infrastructure technologies such as SAP, Oracle, Citrix, JBoss, VMware, AWS, SQL Server, Red Hat, and WebSphere. This extensibility helps organizations standardize monitoring across legacy and modern stacks without redesigning their monitoring approach per technology. Core capabilities: -Unified monitoring for networks, servers, applications, cloud services, endpoints, and logs -Centralized alerting, event correlation, dashboards, and scheduled reporting -Flexible data collection via agents, remote checks, APIs, and plugins -Scalability for distributed environments and large numbers of monitored elements -Analytics for trend/capacity planning plus AI-assisted anomaly detection and dynamic thresholds -A key differentiator is direct vendor support, which simplifies escalation and ensures continuity of expertise for deployment, tuning, and ongoing operations.

**Average Rating:** 4.6/5.0

**Total Reviews:** 212

#### How Do G2 Users Rate Pandora FMS?

- **Second by Second Metrics:** 9.1/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 9.0/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.8/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Pandora FMS?

- **Seller:** [Pandora FMS](https://www.g2.com/sellers/pandora-fms)
- **Company Website:** pandorafms.com
- **Year Founded:** 2004
- **HQ Location:** Madrid, Spain
- **Twitter:** @pandorafms  
5,458 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=61d7801b672bcc3a5cfb4d3ed56b7b1a3a133a8d7502bbad6f151e6ab0c02fdd&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fpandora-pfms%2F&secure%5Burl_type%5D=linkedin_company_website)  
56 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Data Analyst
- **Top Industries:** Information Technology and Services, Telecommunications
- **Company Size:** 50% Medium, 37% Small

#### What Do G2 Reviewers Say About Pandora FMS?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **reliable remote monitoring** of Pandora FMS, appreciating its seamless integration and ease of access.
- Users appreciate the **ease of use** of Pandora FMS, making server monitoring and management seamless and efficient.
- Users value the **real-time monitoring** capabilities of Pandora FMS, enhancing visibility and quick response across IT systems.
- Users value the **flexibility** of Pandora FMS, easily adapting monitoring to diverse systems and specific needs.
- Users value the **real-time network monitoring** of Pandora FMS, which provides instant alerts for any issues.

##### Cons

- Users find the **learning curve steep** , especially for beginners navigating complex scripts and configurations.
- Users find the **complex setup** of Pandora FMS to be challenging, impacting initial experiences and usability.
- Users find the **learning curve steep** with Pandora FMS, particularly when customizing and integrating specific functionalities.
- Users struggle with the **complex configuration** of Pandora FMS, finding the setup process time-consuming and challenging to navigate.
- Users find the **difficult learning curve** of Pandora FMS challenging, affecting their overall experience with the software.

#### What Are Recent G2 Reviews of Pandora FMS?

**["Fast Deployment, Easy to Use, and Strong Performance Even in the Community Version"](https://www.g2.com/survey_responses/pandora-fms-review-12677659)**

**Rating:** 5.0/5.0 stars

_— David D._

[Read full review](https://www.g2.com/survey_responses/pandora-fms-review-12677659)

**["Why we decided to bet on PandoraFMS"](https://www.g2.com/survey_responses/pandora-fms-review-7666873)**

**Rating:** 4.5/5.0 stars

_— Verified User in Commercial Real Estate_

[Read full review](https://www.g2.com/survey_responses/pandora-fms-review-7666873)

#### What Are G2 Users Discussing About Pandora FMS?

- [What are the benefits and drawbacks of using Pandora FMS for IT monitoring?](https://www.g2.com/discussions/what-are-the-benefits-and-drawbacks-of-using-pandora-fms-for-it-monitoring)

### [OpsRamp](https://www.g2.com/products/opsramp/reviews)

OpsRamp’s modern, SaaS-based platform provides enterprise IT teams and managed service providers comprehensive IT operations management (ITOM) from discovery to monitoring to remediation and automation in a single, unified solution.

**Average Rating:** 4.1/5.0

**Total Reviews:** 22

#### How Do G2 Users Rate OpsRamp?

- **Second by Second Metrics:** 10.0/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 10.0/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 10.0/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 7.7/10 (Category avg: 8.9/10)

#### Who Is the Company Behind OpsRamp?

- **Seller:** [OpsRamp](https://www.g2.com/sellers/opsramp)
- **Year Founded:** 2014
- **HQ Location:** San Jose, CA
- **Twitter:** @OpsRamp  
1,451 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=9b52598de7f698d58175c206dddb937f11f31035c21d7a94837f062b05cda6dd&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fopsramp%2F&secure%5Burl_type%5D=linkedin_company_website)  
156 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Information Technology and Services
- **Company Size:** 54% Large, 29% Medium

#### What Do G2 Reviewers Say About OpsRamp?

_AI-generated summary from verified user reviews_

##### Pros

- Users appreciate the **outstanding customer support** of OpsRamp, ensuring their queries are promptly addressed.
- Users praise the **outstanding customer support** offered by OpsRamp, ensuring assistance with any tool-related queries.
- Users value the **customizability** of OpsRamp, allowing tailored integration with various ITOM and ITSM tools seamlessly.
- Users value the **user-friendly dashboard** of OpsRamp, enhancing ease of discovery and monitoring for infrastructure.
- Users appreciate the **user-friendly interface** of OpsRamp, enabling easy discovery and monitoring without difficulty.

##### Cons

- Users find OpsRamp **expensive** , especially for smaller organizations when compared to alternative solutions.
- Users feel the **high licensing cost** of OpsRamp is particularly burdensome for smaller organizations compared to alternatives.
- Users find that the **pricing may be high for smaller organizations** , especially when compared to other alternatives.
- Users experience **slow performance** in dashboards when retrieving data, especially in larger environments.

#### What Are Recent G2 Reviews of OpsRamp?

**["OpsRamp - Modernize Your IT Operations"](https://www.g2.com/survey_responses/opsramp-review-10657405)**

**Rating:** 5.0/5.0 stars

_— B Venkata Sai Ram P._

[Read full review](https://www.g2.com/survey_responses/opsramp-review-10657405)

**["Unified Observability and Automation That Streamlines IT Operations"](https://www.g2.com/survey_responses/opsramp-review-12985367)**

**Rating:** 4.5/5.0 stars

_— Ambuj P._

[Read full review](https://www.g2.com/survey_responses/opsramp-review-12985367)

#### What Are G2 Users Discussing About OpsRamp?

- [What is OpsRamp used for?](https://www.g2.com/discussions/what-is-opsramp-used-for)

### [OpsPilot](https://www.g2.com/products/opspilot/reviews)

OpsPilot OpsPilot is an AI-powered observability and autonomous reliability platform with an AI Site Reliability Engineering (SRE) teammate that helps engineering and operations teams detect, understand, and resolve incidents faster — and increasingly prevent them from happening at all. Your 24/7 stack expert Modern production systems — microservices, distributed architectures, cloud and hybrid environments — generate enormous volumes of telemetry. Your existing tools surface that data. But they still leave engineers responsible for interpreting signals, finding root causes, and deciding what to do next. OpsPilot closes that gap. It continuously analyzes telemetry across your applications, infrastructure, and services — then tells your team what is happening, why it is happening, and what to do about it. From dashboards to autonomous reliability OpsPilot goes beyond alerting and visualization. It correlates signals across metrics, logs, traces, and deployment events to identify abnormal behavior, explain root causes, and guide teams toward faster resolution — dramatically reducing time spent on incident investigation and operational troubleshooting. Over time, it evolves from reactive investigation toward proactive and autonomous operations. Your AI SRE teammate OpsPilot acts as an AI SRE teammate — augmenting your operations team by answering the questions engineers face during incidents: What changed? Where is the failure occurring? Which service is responsible? What should we investigate next? Three core capabilities Observability — collects and correlates telemetry across metrics, logs, traces, JVM data, and application-level diagnostics for a complete picture of system behavior. Operational Intelligence — applies AI-driven analysis to surface what changed, what is causing the issue, which components are involved, and what actions may resolve it. Foundational capabilities include anomaly detection, alert reduction, telemetry correlation, and root cause analysis. Action and Automation — supports guided incident response, runbook generation, automated remediation, and continuous operational learning — moving teams progressively toward autonomous reliability. OpenTelemetry-native. No new agents required. OpsPilot ingests telemetry via OTLP over gRPC or HTTP — no proprietary agent required. It works with your existing OpenTelemetry instrumentation across Kubernetes, microservices, cloud services, and serverless platforms. Prometheus-compatible metrics, Loki log ingestion, and Jaeger/Zipkin trace formats are also supported. For teams needing deep JVM or ColdFusion diagnostics, the optional FusionReactor APM agent provides additional application-level telemetry. Built for DevOps, SRE, and platform engineering teams OpsPilot is designed for organizations running modern production systems that require high reliability and operational efficiency — particularly teams moving toward SRE or platform engineering models who need deeper operational insight without increasing headcount. Deployed as SaaS, hybrid, or agentless via OpenTelemetry.

**Average Rating:** 4.8/5.0

**Total Reviews:** 174

#### How Do G2 Users Rate OpsPilot?

- **Second by Second Metrics:** 9.2/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 9.2/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.9/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 8.9/10)

#### Who Is the Company Behind OpsPilot?

- **Seller:** [Intergral](https://www.g2.com/sellers/intergral)
- **Company Website:** www.fusion-reactor.com
- **Year Founded:** 1998
- **HQ Location:** Boeblingen, DE
- **Twitter:** @Fusion\_Reactor  
9,345 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=06190f83178db2c90da22a1fbf204dee69074f7e9028182f8264c6277dbe6f61&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fshowcase%2Ffusionreactor%2F&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** CTO, Developer
- **Top Industries:** Information Technology and Services, Computer Software
- **Company Size:** 61% Small, 29% Medium

#### What Do G2 Reviewers Say About OpsPilot?

_AI-generated summary from verified user reviews_

##### Pros

- Users appreciate the **ease of use** of OpsPilot, allowing for straightforward setup and effortless monitoring of applications.
- Users find the **real-time web metrics and insights** from OpsPilot extremely useful for monitoring and optimizing app performance.
- Users appreciate the **real-time visibility and detailed insights** provided by FusionReactor APM for effective monitoring.
- Users love the **real-time monitoring** capabilities of OpsPilot, enabling effective troubleshooting and performance optimization.
- Users commend the **excellent customer support** of OpsPilot, noting their friendly and responsive assistance for all inquiries.

##### Cons

- Users find the **learning curve steep** due to complex features and confusing settings, impacting effective use of OpsPilot.
- Users find **difficult configuration** a challenge, often struggling with settings spread across various menus and options.
- Users face a **learning difficulty** with OpsPilot, as setup and feature complexity can be overwhelming initially.
- Users find the **UI confusing** and prefer the clearer layout of the on-premises version of OpsPilot.
- Users find the **UI design confusing** , especially in the Cloud version, impacting usability and clarity significantly.

#### What Are Recent G2 Reviews of OpsPilot?

**["FusionReactor APM: Real-Time Memory Insights and Proactive Crash Protection"](https://www.g2.com/survey_responses/opspilot-review-12399926)**

**Rating:** 5.0/5.0 stars

_— Octavian C._

[Read full review](https://www.g2.com/survey_responses/opspilot-review-12399926)

**["Ein echtes "Must-Have" für jeden Betreiber eines Anwendungsservers."](https://www.g2.com/survey_responses/opspilot-review-11664008)**

**Rating:** 5.0/5.0 stars

_— René H._

[Read full review](https://www.g2.com/survey_responses/opspilot-review-11664008)

#### What Are G2 Users Discussing About OpsPilot?

- [What is FusionReactor APM used for?](https://www.g2.com/discussions/what-is-fusionreactor-apm-used-for)

### [Splunk AppDynamics](https://www.g2.com/products/splunk-appdynamics/reviews)

Powered by Cisco, AppDynamics is on a mission to help companies see their technology through the lens of the business so they can work as one to prioritize what matters most. We’re reinventing the observability space and simplifying the challenge of digital transformation for the world’s largest enterprises. In this era of unprecedented digital growth, the AppDynamics Business Observability Platform transforms organizations faster by providing business context deep into the technology stack, aligning teams around shared priorities, and enabling technologists to act with confidence and control. AppDynamics has been recognized by Gartner as a leader in the APM market for more than eight years and was positioned highest in ‘ability to execute’ in Gartner’s 2021 Magic Quadrant Report for APM.

**Average Rating:** 4.3/5.0

**Total Reviews:** 336

#### How Do G2 Users Rate Splunk AppDynamics?

- **Second by Second Metrics:** 8.5/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 9.3/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.9/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 8.5/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Splunk AppDynamics?

- **Seller:** [Cisco](https://www.g2.com/sellers/cisco)
- **Year Founded:** 1984
- **HQ Location:** San Jose, CA
- **Twitter:** @Cisco  
720,366 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=476aeabc5a712d049453edd5c54ea0318890d9e60d93782e37fe028224df1cbd&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcisco%2F&secure%5Burl_type%5D=linkedin_company_website)  
95,545 employees on LinkedIn®
- **Ownership:** NASDAQ:CSCO

#### Who Uses This Product?

- **Who Uses This:** Senior Software Engineer, Software Engineer
- **Top Industries:** Information Technology and Services, Computer Software
- **Company Size:** 58% Large, 35% Medium

#### What Do G2 Reviewers Say About Splunk AppDynamics?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **easy integration** of AppDynamics with ITSM tools, enhancing their monitoring and operational efficiency.
- Users appreciate the **easy integration with ITSM tools** , enhancing their ability to monitor enterprise applications efficiently.
- Users find **ease of integration** with tools like ServiceNow enhances their experience with AppDynamics significantly.
- Users value the **easy integrations** with tools like Servicenow, enhancing connectivity and efficiency for application monitoring.
- Users value the **easy integration** with ITSM tools like ServiceNow for enhanced application performance monitoring.

##### Cons

- Users express concerns over **billing issues** , including high renewal costs and slow support timelines post-Cisco acquisition.
- Users express concern over **expensive renewal costs** and delayed support timelines post-Cisco acquisition impacting overall value.
- Users experience delays due to a **inefficient alert system** following Cisco's acquisition, impacting overall response times.
- Users express frustration with **poor customer support** , citing slow response times and unresolved product issues post-acquisition.
- Users express concerns about **high renewal costs** and extended timelines for product enhancements post-Cisco acquisition.

#### What Are Recent G2 Reviews of Splunk AppDynamics?

**["Best-in-Class Application Performance Monitoring with Splunk AppDynamics"](https://www.g2.com/survey_responses/splunk-appdynamics-review-13182989)**

**Rating:** 4.5/5.0 stars

_— Verified User in Information Technology and Services_

[Read full review](https://www.g2.com/survey_responses/splunk-appdynamics-review-13182989)

**["AppDynamics - A powerful analytics tool for business transactions and monitoring"](https://www.g2.com/survey_responses/splunk-appdynamics-review-9780843)**

**Rating:** 4.5/5.0 stars

_— Brajesh S._

[Read full review](https://www.g2.com/survey_responses/splunk-appdynamics-review-9780843)

#### What Are G2 Users Discussing About Splunk AppDynamics?

- [What is AppDynamics used for?](https://www.g2.com/discussions/what-is-appdynamics-used-for) - 1 comment

### [NETSCOUT Network & Application Observability](https://www.g2.com/products/netscout-network-application-observability/reviews)

NETSCOUT’s Network & Application Observability solution is engineered for IT practitioners who need deep, real-time visibility into complex hybrid environments. Whether you're managing a sprawling data center, a multi-cloud deployment, 5G deployment, or a remote workforce, this solution delivers the actionable intelligence required to maintain performance, availability, and user experience across every layer of your infrastructure. At its core, NETSCOUT leverages Deep Packet Inspection (DPI) to convert raw network traffic into smart data. This allows IT teams to monitor application behavior, network performance, and service dependencies with precision, even in containerized environments. The result is a unified, end-to-end view that helps you quickly isolate root causes, reduce mean time to knowledge (MTTK), and proactively resolve issues before they impact users or business operations. What sets NETSCOUT apart is its ability to scale observability across both legacy and modern architectures without requiring intrusive agents or instrumentation. It integrates seamlessly with existing workflows and tools, providing consistent visibility whether you're troubleshooting a VoIP degradation, tracking down a cloud latency spike, or validating the performance of a new application rollout. For IT professionals tasked with ensuring uptime and optimizing digital experiences, NETSCOUT’s observability platform is not just a monitoring tool—it’s a strategic asset that transforms packet-level data into operational intelligence. Products included in this solution: - nGeniusONE - InfiniStreamNG - vSTREAM - Packet Flow Switches (PFS) and TAPs

**Average Rating:** 4.5/5.0

**Total Reviews:** 88

#### How Do G2 Users Rate NETSCOUT Network & Application Observability?

- **Second by Second Metrics:** 8.3/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 8.8/10 (Category avg: 8.4/10)
- **Has the product been a good partner in doing business?:** 7.0/10 (Category avg: 8.9/10)

#### Who Is the Company Behind NETSCOUT Network & Application Observability?

- **Seller:** [NETSCOUT](https://www.g2.com/sellers/netscout)
- **Company Website:** www.netscout.com
- **Year Founded:** 1984
- **HQ Location:** Westford, Mass.
- **Twitter:** @NETSCOUT  
13,759 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0539fd13e4b3252ce5ce69ecb5c1ed6ce9b59b6b9d04438c62f4642859b4e48e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fnetscout%2F&secure%5Burl_type%5D=linkedin_company_website)  
2,692 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Telecommunications, Financial Services
- **Company Size:** 38% Large, 30% Medium

#### What Do G2 Reviewers Say About NETSCOUT Network & Application Observability?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **comprehensive visibility** NETSCOUT provides, enabling swift issue resolution and enhanced performance monitoring.
- Users value the **efficient issue detection** of NETSCOUT, allowing quick resolution of network and application problems.
- Users value the **comprehensive visibility** NETSCOUT provides, enhancing network and application performance monitoring effectively.
- Users value the **reliability** of NETSCOUT for proactive troubleshooting and comprehensive insights into network performance.
- Users value the **ease of use** of NETSCOUT Network & Application Observability, appreciating its straightforward setup and configuration.

##### Cons

- Users find the **steep learning curve** challenging, requiring specialized knowledge and complicating implementation and integration.
- Users find the **complexity of implementation** challenging due to the steep learning curve and resource intensity.
- Users find the **difficult learning curve** due to complex setup and interface, impacting initial usage and efficiency.
- Users find the **complex setup** challenging, requiring extensive specialized knowledge and making initial implementation difficult.
- Users often find the **complex configuration** of NETSCOUT challenging, particularly for teams lacking deep network expertise.

#### What Are Recent G2 Reviews of NETSCOUT Network & Application Observability?

**["Essential for Real-Time Network Monitoring"](https://www.g2.com/survey_responses/netscout-network-application-observability-review-13077478)**

**Rating:** 5.0/5.0 stars

_— Hariom K._

[Read full review](https://www.g2.com/survey_responses/netscout-network-application-observability-review-13077478)

**["Powerful Network Visibility, Steep Learning Curve"](https://www.g2.com/survey_responses/netscout-network-application-observability-review-13069041)**

**Rating:** 4.0/5.0 stars

_— Ashwathanarayana H._

[Read full review](https://www.g2.com/survey_responses/netscout-network-application-observability-review-13069041)

### [Scout Monitoring](https://www.g2.com/products/scout-monitoring/reviews)

Scout Monitoring is application performance monitoring that streamlines troubleshooting by helping developers find and fix performance issues before customers ever see them. With real-time alerting, a developer-centric UI, and tracing that ties bottlenecks directly to source code, Scout helps teams spend less time debugging and more time building great products. Quickly identify, prioritize, and resolve issues like memory bloat, N+1 queries, slow database queries, and related performance problems using lightweight instrumentation with minimal overhead. Built for developers, by developers, Scout supports Ruby, PHP, Python, and Elixir applications and provides a unified view of application performance, errors, and logs with simple, transparent pricing.

**Average Rating:** 4.6/5.0

**Total Reviews:** 73

#### How Do G2 Users Rate Scout Monitoring?

- **Second by Second Metrics:** 7.9/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 9.0/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 7.1/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Scout Monitoring?

- **Seller:** [Scout Monitoring](https://www.g2.com/sellers/scout-monitoring)
- **Year Founded:** 2008
- **HQ Location:** Fort Collins, CO
- **Twitter:** @ScoutAPM  
1,777 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=eefdf82a2b562fa77d07406dfa38f7608bcb0064388563d66e4de3f9f81a2ac3&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F620075%2F&secure%5Burl_type%5D=linkedin_company_website)  
22 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Founder, CTO
- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 61% Small, 35% Medium

#### What Do G2 Reviewers Say About Scout Monitoring?

_AI-generated summary from verified user reviews_

##### Pros

- Users value the **clear and actionable insights** from Scout Monitoring, enabling effective prioritization of performance issues.
- Users commend the **efficiency** of Scout Monitoring, which helps quickly identify and resolve performance issues effectively.
- Users find Scout Monitoring to be very **easy to use** , providing clear insights with a low learning curve.
- Users value the **comprehensive tools** that Scout Monitoring offers for analyzing application and database performance.
- Users value Scout Monitoring for its **actionable insights** , enabling efficient resolution of performance issues before they escalate.

##### Cons

- Users find the **missing features** in Scout Monitoring, such as index insights and higher transaction limits, limiting their experience.
- Users face significant **compatibility issues** with Scout Monitoring due to lack of support for diverse programming languages.
- Users find that the **pricing issues** could be improved, especially when compared to similar tools by larger providers.
- Users find Scout Monitoring **expensive** , suggesting that pricing and documentation need significant improvement.
- Users highlight the **filtering issues** with Scout Monitoring, as it lacks support for multiple languages and technologies.

#### What Are Recent G2 Reviews of Scout Monitoring?

**["Real User Here: They give us unmatched SQL Visibility That Pinpoints Slow Queries Fast"](https://www.g2.com/survey_responses/scout-monitoring-review-12893624)**

**Rating:** 5.0/5.0 stars

_— Graham Q._

[Read full review](https://www.g2.com/survey_responses/scout-monitoring-review-12893624)

**["APM Simplified"](https://www.g2.com/survey_responses/scout-monitoring-review-12857166)**

**Rating:** 4.5/5.0 stars

_— Tyler S._

[Read full review](https://www.g2.com/survey_responses/scout-monitoring-review-12857166)

#### What Are G2 Users Discussing About Scout Monitoring?

- [What is APM tool used for?](https://www.g2.com/discussions/what-is-apm-tool-used-for) - 1 comment
- [What is the best APM?](https://www.g2.com/discussions/what-is-the-best-apm) - 1 comment
- [What is APM software?](https://www.g2.com/discussions/what-is-apm-software) - 1 comment

### [Firebase Performance Monitoring](https://www.g2.com/products/firebase-performance-monitoring/reviews)

Get insights into how your app performs from your users' point of view, with automatic and customized performance tracing

**Average Rating:** 4.6/5.0

**Total Reviews:** 28

#### How Do G2 Users Rate Firebase Performance Monitoring?

- **Second by Second Metrics:** 8.8/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 8.3/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.3/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 8.9/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Firebase Performance Monitoring?

- **Seller:** [Google](https://www.g2.com/sellers/google)
- **Year Founded:** 1998
- **HQ Location:** Mountain View, CA
- **Twitter:** @google  
31,899,995 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=fe4a5936665c9702418dd53c477fef5a7baea08078bb117ed67e966fc581b9ec&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1441%2F&secure%5Burl_type%5D=linkedin_company_website)  
341,888 employees on LinkedIn®
- **Ownership:** NASDAQ:GOOG

#### Who Uses This Product?

- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 60% Small, 23% Medium

#### What Are Recent G2 Reviews of Firebase Performance Monitoring?

**["Fireworks for Firebase Performance Monitoring Tool"](https://www.g2.com/survey_responses/firebase-performance-monitoring-review-7706030)**

**Rating:** 5.0/5.0 stars

_— Subash V._

[Read full review](https://www.g2.com/survey_responses/firebase-performance-monitoring-review-7706030)

**["All in one Tool for performance analysis"](https://www.g2.com/survey_responses/firebase-performance-monitoring-review-7732476)**

**Rating:** 5.0/5.0 stars

_— Sahdeep S._

[Read full review](https://www.g2.com/survey_responses/firebase-performance-monitoring-review-7732476)

#### What Are G2 Users Discussing About Firebase Performance Monitoring?

- [Is firebase performance monitoring free?](https://www.g2.com/discussions/is-firebase-performance-monitoring-free)
- [How do I check my firebase performance?](https://www.g2.com/discussions/how-do-i-check-my-firebase-performance)
- [How does firebase performance work?](https://www.g2.com/discussions/how-does-firebase-performance-work)
- [What is firebase performance monitoring?](https://www.g2.com/discussions/what-is-firebase-performance-monitoring)

### [Sauce Labs](https://www.g2.com/products/sauce-labs/reviews)

In a world that relies on code, Sauce Labs strives to make it work for everyone, everywhere and every time. This is digital confidence. Sauce Labs is the leading provider of continuous test and error reporting solutions that gives companies confidence to deliver a trusted digital brand experience to their customers. The Sauce Labs Continuous Testing Cloud identifies quality signals in development and production, accelerating the ability to release and update web and mobile applications that look, function and perform exactly as they should on every browser, operating system and device, every single time. For more information, please visit https://saucelabs.com.

**Average Rating:** 4.3/5.0

**Total Reviews:** 166

#### How Do G2 Users Rate Sauce Labs?

- **Second by Second Metrics:** 8.3/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 8.7/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.0/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 8.4/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Sauce Labs?

- **Seller:** [Sauce Labs](https://www.g2.com/sellers/sauce-labs)
- **Year Founded:** 2008
- **HQ Location:** San Francisco, CA
- **Twitter:** @saucelabs  
12,590 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8d69cad4e01d137870af626d6a9d007d7669a2bb3d34b15dcfb39d99223a6489&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F891955%2F&secure%5Burl_type%5D=linkedin_company_website)  
341 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Software Engineer, Senior Software Engineer
- **Top Industries:** Information Technology and Services, Computer Software
- **Company Size:** 49% Large, 39% Medium

#### What Do G2 Reviewers Say About Sauce Labs?

_AI-generated summary from verified user reviews_

##### Pros

- Users appreciate the **ease of use** of Sauce Labs, enabling effortless cross-browser and device testing with seamless integration.
- Users value the **seamless automation** and integration capabilities of Sauce Labs, enhancing efficiency in cross-browser and mobile testing.
- Users value the **seamless cross-browser testing** functionality of Sauce Labs, enhancing testing efficiency and integration.
- Users appreciate the **real-time testing** capabilities of Sauce Labs, enhancing efficiency and speeding up feedback on issues.
- Users appreciate the **real device testing** of Sauce Labs, enhancing accuracy and reliability across multiple platforms.

##### Cons

- Users find the **learning curve steep** , requiring significant time and effort to configure and optimize Sauce Labs.
- Users find the **complexity in setup and configuration** a barrier, especially for new users and smaller teams.
- Users find the **difficult setup** process cumbersome, requiring significant time and effort to configure effectively.
- Users find Sauce Labs to be **expensive** compared to alternatives, raising concerns about cost versus value and support delays.
- Users find the **learning difficulty** for advanced configurations and integrations in Sauce Labs can be steep for newcomers.

#### What Are Recent G2 Reviews of Sauce Labs?

**["Streamlined QA Testing with Minor Android Setbacks"](https://www.g2.com/survey_responses/sauce-labs-review-12487468)**

**Rating:** 4.5/5.0 stars

_— Ramya T._

[Read full review](https://www.g2.com/survey_responses/sauce-labs-review-12487468)

**["Sauce Labs Review"](https://www.g2.com/survey_responses/sauce-labs-review-12179087)**

**Rating:** 5.0/5.0 stars

_— Sourabh C._

[Read full review](https://www.g2.com/survey_responses/sauce-labs-review-12179087)

#### What Are G2 Users Discussing About Sauce Labs?

- [What is Sauce Labs used for?](https://www.g2.com/discussions/sauce-labs-what-is-sauce-labs-used-for)
- [What is TestObject used for?](https://www.g2.com/discussions/what-is-testobject-used-for)
- [How do you use selenium Sauce Labs?](https://www.g2.com/discussions/how-do-you-use-selenium-sauce-labs)
- [What is BrowserStack and Sauce Labs?](https://www.g2.com/discussions/what-is-browserstack-and-sauce-labs)
- [Are Sauce Labs free?](https://www.g2.com/discussions/are-sauce-labs-free)

### [Lightrun](https://www.g2.com/products/lightrun-lightrun/reviews)

Named 2021 Gartner Cool Vendor, Lightrun builds an IDE-native observability & debugging platform that enables developers to securely add logs, metrics and traces to production and staging environments in real time, on demand. No hotfixes, redeployments or restarts required. Developers use Lightrun for multiple code-level observability needs, including: \* Code-level alerts (Java, Node.js, Python, .NET) \* Feature verification \* Testing / debugging in production \* Troubleshooting cloud native apps, Serverless, and more \* Log optimization capabilities through a Log Optimizer(TM) By eliminating the need to reproduce bugs locally or issue a new software version for adding new logs or metrics to troubleshoot production issues, Lightrun's customers consistently reduce their MTTR by up to 50-60% and significantly improve development productivity. Issues that used to take 1-2 weeks to mitigate now take our customers on average less than an hour to solve. Lightrun empowers our customers' developers by eliminating the need for costly developer lifecycle operations like reproducing locally, or issuing a new software version just for adding new logs or metrics. Our customers, running petabyte-scale workloads with QPS in the high 100Ks across thousands of production servers, include companies that reach 44.5% of the internet's population and major, publicly-traded cybersecurity companies.

**Average Rating:** 4.8/5.0

**Total Reviews:** 67

#### How Do G2 Users Rate Lightrun?

- **Second by Second Metrics:** 9.0/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 8.6/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 9.0/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Lightrun?

- **Seller:** [Lightrun](https://www.g2.com/sellers/lightrun)
- **Year Founded:** 2019
- **HQ Location:** Tel Aviv, IL
- **Twitter:** @Lightruntech  
282 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=3c3f1daf125b81f535bed0f4470817ad5959d07c1d9acb263b5c0795be1ae631&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Flightruntech%2F&secure%5Burl_type%5D=linkedin_company_website)  
90 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 43% Medium, 28% Large

#### What Do G2 Reviewers Say About Lightrun?

_AI-generated summary from verified user reviews_

##### Pros

- Users value Lightrun for its **easy integrations** , enhancing real-time debugging and streamlining workflows effortlessly.
- Users value the **IDE integration** of Lightrun, enhancing real-time debugging efficiency in production environments.
- Users find Lightrun's **ease of use** exceptional, greatly enhancing their debugging and troubleshooting experiences.
- Users commend Lightrun for its **performance optimization** , enabling efficient real-time debugging directly in production environments.
- Users value the **time-saving capabilities** of Lightrun, enabling quick troubleshooting and reducing debugging complexity.

##### Cons

- Users seek **improvements in deployment options and UI** for a more efficient and user-friendly experience with Lightrun.
- Users feel the **UI design is lacking** , suggesting that improvements could enhance their overall experience with Lightrun.
- Users note that while there are **UI improvement opportunities** in Lightrun, the overall experience continues to progress positively.
- Users find the **learning curve steep** , particularly due to the IDE plugin difficulties and compiler limitations.
- Users note that the **UI needs improvement** , suggesting enhancements for a better experience across platforms.

#### What Are Recent G2 Reviews of Lightrun?

**["Effortless Production Debugging with Root Cause Precision"](https://www.g2.com/survey_responses/lightrun-review-12211888)**

**Rating:** 4.5/5.0 stars

_— Ranjit S._

[Read full review](https://www.g2.com/survey_responses/lightrun-review-12211888)

**["Amazing product saved the customer two months of waiting"](https://www.g2.com/survey_responses/lightrun-review-11698457)**

**Rating:** 5.0/5.0 stars

_— Verified User in Program Development_

[Read full review](https://www.g2.com/survey_responses/lightrun-review-11698457)

#### What Are G2 Users Discussing About Lightrun?

- [What is Lightrun used for?](https://www.g2.com/discussions/what-is-lightrun-used-for) - 5 upvotes

### [Checkmk](https://www.g2.com/products/checkmk/reviews)

Checkmk is a full-stack monitoring and observability platform designed to provide unified visibility into hybrid IT infrastructures. With more than 2,000 built-in integrations, it offers broad coverage across networks, servers, cloud workloads, Kubernetes and applications. The platform is highly automated, featuring auto-discovery of hosts and services and rule-based configuration to reduce manual setup. It is highly scalable, capable of efficiently monitoring thousands of hosts and millions of services. A central web-based interface allows users to manage configuration, visualize data with customizable dashboards, and track system performance over time. Checkmk is available as packages for all common Linux distributions, as a virtual or physical appliance, through AWS and Azure Marketplace images, or as SaaS. Checkmk is available in four editions: Checkmk Community offers free and open source monitoring for small infrastructures. Checkmk Pro allows for monitoring at speed and scale for data center infrastructures. Checkmk Ultimate offers full-stack observability for hybrid and cloud-native infrastructures which is also available with multi-tenancy and data segregation to support security and compliance. And Checkmk Cloud for full-stack observability for hybrid and cloud-native infrastructures in a SaaS platform. Available extensions include synthetic monitoring and OpenTelemetry for application monitoring. The Checkmk Relay enables secure data collection for segmented networks using outbound-only communication, supporting fully air-gapped and zero-inbound monitoring deployments. Checkmk supports integration with ITSM tools and third-party platforms, enabling automatic ticket creation and consistent alerting. Features such as forecasting, capacity planning, and asset inventory as well as lifecycle management and auto-registration help teams manage dynamic IT environments. Monitoring capabilities: - Monitoring of hybrid infrastructures: cloud, on-premises, virtual, and container environments. - 2000+ built-in integrations networks, servers, cloud workloads, Kubernetes and applications out-of-the-box dashboards provide key metrics for AWS and Azure environments, Linux and Windows servers, and Kubernetes clusters. - Automated discovery and configuration. - Alerting with native ITSM integrations. Operational benefits: - Provides insights into system health, capacity trends, and future resource needs through built-in assessments and forecasting tools. - Reduces manual effort with auto-discovery, rule-based configuration, and centralized agent management as well as auto-registration and host lifecycle management. - Accelerates incident response time by using custom self-healing workflows via the ‘Alert Handler’. - Allows creation of tailored dashboards and views to focus on the most relevant metrics for each team. - Maintains an up-to-date inventory of hardware and software assets, enriched with live monitoring data. - Supports distributed monitoring and can handle massive amounts of data. Why choose Checkmk? - Cost Efficiency: Transparent pricing model with a strong price-performance ratio - Security: Meets stringent security requirements, including fully air-gapped deployments and zero-inbound monitoring. - Visibility: Delivers broad and deep visibility with flexible deployment options. - Scalability: Scales efficiently to support large, distributed environments with high host and service counts. - Extensibility: Supports custom plug-ins, integrations, synthetic monitoring to monitor you applications from the user’s perspective and OpenTelemetry for application monitoring. Customers include: Adobe, Cloudera, Fujitsu, Siemens, Orange, VW, HP, Zalando, Fitbit, NEC, Continental, NHL, Capgemini, Sixt, Intesa SanPaolo

**Average Rating:** 4.7/5.0

**Total Reviews:** 294

#### How Do G2 Users Rate Checkmk?

- **Second by Second Metrics:** 7.3/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 7.8/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 7.0/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.0/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Checkmk?

- **Seller:** [Checkmk](https://www.g2.com/sellers/checkmk)
- **Company Website:** checkmk.com
- **Year Founded:** 2007
- **HQ Location:** Munich, DE
- **Twitter:** @checkmk  
1,755 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=3ca503fe26c40a0637ffb12376dcf8580a5f90178bc7980702b688b368f8a219&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F11824415%2F&secure%5Burl_type%5D=linkedin_company_website)  
225 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** IT Engineer, Systemadministrator
- **Top Industries:** Information Technology and Services, Computer & Network Security
- **Company Size:** 42% Medium, 40% Large

#### What Do G2 Reviewers Say About Checkmk?

_AI-generated summary from verified user reviews_

##### Pros

- Users find Checkmk extremely **easy to use** , appreciating its clear documentation and quick setup for effective monitoring.
- Users appreciate the **flexible and powerful monitoring** capabilities of Checkmk, making it suitable for diverse IT infrastructures.
- Users appreciate the **comprehensive monitoring capabilities** of Checkmk, providing visibility across diverse IT infrastructures effortlessly.
- Users value the **flexibility and customization** of Checkmk, making it a versatile and powerful monitoring solution.
- Users value the **real-time monitoring** capabilities of Checkmk, enabling seamless observation of applications and infrastructure.

##### Cons

- Users find the **learning curve steep** , making onboarding and finding settings difficult for non-regular users.
- Users find **difficult learning** curves with Checkmk, particularly in customizing dashboards and understanding complex settings.
- Users find the **onboarding process and configuration overly complex** , posing challenges for new and non-regular users.
- Users experience a **steep learning curve** with Checkmk, particularly for advanced configurations and custom development.
- Users find the **complex setup** of Checkmk challenging, especially for non-regular users and advanced features.

#### What Are Recent G2 Reviews of Checkmk?

**["Enterprise grade monitoring as it should be"](https://www.g2.com/survey_responses/checkmk-review-1510115)**

**Rating:** 5.0/5.0 stars

_— Rolf A._

[Read full review](https://www.g2.com/survey_responses/checkmk-review-1510115)

**["Efficient monitoring, but reports need improvement"](https://www.g2.com/survey_responses/checkmk-review-9773274)**

**Rating:** 5.0/5.0 stars

_— Martin K._

[Read full review](https://www.g2.com/survey_responses/checkmk-review-9773274)

#### What Are G2 Users Discussing About Checkmk?

- [Why Checkmk?](https://www.g2.com/discussions/why-checkmk) - 1 comment
- [Is Check MK free?](https://www.g2.com/discussions/is-check-mk-free) - 1 comment, 1 upvote
- [Is Checkmk open source?](https://www.g2.com/discussions/is-checkmk-open-source) - 8 comments
- [What does Checkmk do?](https://www.g2.com/discussions/what-does-checkmk-do) - 2 comments

### [Google Cloud Monitoring](https://www.g2.com/products/google-cloud-monitoring/reviews)

Cloud Monitoring collects metric data and provides tools that let you monitor and visualize how your applications and services are performing.

**Average Rating:** 4.2/5.0

**Total Reviews:** 67

#### How Do G2 Users Rate Google Cloud Monitoring?

- **Second by Second Metrics:** 7.5/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 7.5/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 7.7/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 8.1/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Google Cloud Monitoring?

- **Seller:** [Google](https://www.g2.com/sellers/google)
- **Year Founded:** 1998
- **HQ Location:** Mountain View, CA
- **Twitter:** @google  
31,899,995 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=fe4a5936665c9702418dd53c477fef5a7baea08078bb117ed67e966fc581b9ec&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1441%2F&secure%5Burl_type%5D=linkedin_company_website)  
341,888 employees on LinkedIn®
- **Ownership:** NASDAQ:GOOG

#### Who Uses This Product?

- **Who Uses This:** Software Engineer
- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 54% Small, 29% Medium

#### What Do G2 Reviewers Say About Google Cloud Monitoring?

_AI-generated summary from verified user reviews_

##### Pros

- Users appreciate the **reliability and scalability** of Google Cloud Monitoring, enhancing incident management and operational efficiency.
- Users value the **large support community** and global data centers that enhance performance and learning opportunities.
- Users value the **reliability and scalability** of Google Cloud Monitoring, enhancing visibility and traceability in IT operations.
- Users value the **effective collaboration** features of Google Cloud Monitoring, enhancing integration with essential ITSM tools.
- Users find the **user-friendly data management** of Google Cloud Monitoring beneficial for storing data in various Google services.

##### Cons

- Users report **billing issues** with limited storage space and inability to purchase additional storage despite the option.
- Users are frustrated with the **data limitations** of Google Cloud Monitoring, facing insufficient storage options despite the apparent possibility to purchase more.
- Users face a **difficult learning curve** due to the complexity of features and integration challenges with other services.
- Users find GCP’s pricing model **expensive and complicated** , often requiring detailed explanations for better understanding.
- Users face **integration issues** with non-Google services, complicating their overall experience with Google Cloud Monitoring.

#### What Are Recent G2 Reviews of Google Cloud Monitoring?

**["Google Cloud Empowers Modern ITSM with Scalable, Reliable Infrastructure"](https://www.g2.com/survey_responses/google-cloud-monitoring-review-11044791)**

**Rating:** 4.0/5.0 stars

_— Anand N._

[Read full review](https://www.g2.com/survey_responses/google-cloud-monitoring-review-11044791)

**["Google Cloud : Pros , Cons and Verdict"](https://www.g2.com/survey_responses/google-cloud-monitoring-review-10672608)**

**Rating:** 4.0/5.0 stars

_— Verified User in Information Technology and Services_

[Read full review](https://www.g2.com/survey_responses/google-cloud-monitoring-review-10672608)

#### What Are G2 Users Discussing About Google Cloud Monitoring?

- [What is Google Cloud Monitoring used for?](https://www.g2.com/discussions/what-is-google-cloud-monitoring-used-for) - 1 comment
- [What is Stackdriver monitoring?](https://www.g2.com/discussions/what-is-stackdriver-monitoring)
- [What is monitoring in cloud computing?](https://www.g2.com/discussions/what-is-monitoring-in-cloud-computing)
- [Why is Google monitor important?](https://www.g2.com/discussions/why-is-google-monitor-important)
- [Can Stackdriver monitor other clouds?](https://www.g2.com/discussions/can-stackdriver-monitor-other-clouds)

### [Rollbar](https://www.g2.com/products/rollbar/reviews)

Go beyond crash reporting, error tracking, logging and error monitoring. Get instant and accurate alerts — plus a real-time feed — of all errors, including unhandled exceptions. Our automation-grade grouping uses machine learning to reduce noise and gives you error signals you can trust.

**Average Rating:** 4.5/5.0

**Total Reviews:** 165

#### How Do G2 Users Rate Rollbar?

- **Second by Second Metrics:** 6.4/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 7.8/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 6.8/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Rollbar?

- **Seller:** [Rollbar](https://www.g2.com/sellers/rollbar)
- **Year Founded:** 2012
- **HQ Location:** San Francisco, CA
- **Twitter:** @rollbar  
3,913 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8ac3869448cb70508d2af928d9a5632fd7267ef66dd0d21b660398b85a0362cb&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F3073979%2F&secure%5Burl_type%5D=linkedin_company_website)  
28 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Software Engineer, Senior Software Engineer
- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 62% Small, 26% Medium

#### What Do G2 Reviewers Say About Rollbar?

_AI-generated summary from verified user reviews_

##### Pros

- Users find Rollbar's setup to be **simple and straightforward** , requiring no significant learning curve compared to other tools.
- Users find the **setup ease** of Rollbar impressive, noting that it requires no learning curve unlike other tools.
- Users find Rollbar to be a **simple tool to set up** , requiring no significant learning curve unlike other options.

##### Cons

- Users experience **mismatched error titles and descriptions** , requiring manual checks that complicate error handling.

#### What Are Recent G2 Reviews of Rollbar?

**["Simple and amazing tool for error notifications"](https://www.g2.com/survey_responses/rollbar-review-10814751)**

**Rating:** 5.0/5.0 stars

_— Krishnan M._

[Read full review](https://www.g2.com/survey_responses/rollbar-review-10814751)

**["Empower teams to monitor backend"](https://www.g2.com/survey_responses/rollbar-review-11279968)**

**Rating:** 5.0/5.0 stars

_— Myron F._

[Read full review](https://www.g2.com/survey_responses/rollbar-review-11279968)

#### What Are G2 Users Discussing About Rollbar?

- [What is Rollbar used for?](https://www.g2.com/discussions/what-is-rollbar-used-for) - 1 comment
- [What does Rollbar do?](https://www.g2.com/discussions/what-does-rollbar-do) - 1 comment
- [Are rollbars free?](https://www.g2.com/discussions/are-rollbars-free) - 1 comment
- [How does a rollbar work?](https://www.g2.com/discussions/how-does-a-rollbar-work)
- [What is rollbar software?](https://www.g2.com/discussions/what-is-rollbar-software) - 1 comment

### [Progress WhatsUp Gold](https://www.g2.com/products/progress-whatsup-gold/reviews)

WhatsUp Gold is an IT infrastructure monitoring software designed to help users identify and resolve network issues swiftly, often before they impact end users. This solution provides comprehensive visibility into network performance and availability, enabling IT professionals to maintain optimal operations across their infrastructure. With its interactive mapping interface, WhatsUp Gold allows users to visualize the status of all devices connected to their network, making it easier to monitor both on-premise and cloud-based resources. Targeted primarily at IT administrators and network engineers, WhatsUp Gold is particularly beneficial for organizations that rely heavily on network performance for their daily operations. Its user-friendly design caters to both seasoned professionals and those new to network management, offering a range of features that streamline the monitoring process. The software is designed to support various use cases, from small businesses needing basic monitoring capabilities to large enterprises requiring advanced network management solutions. One of the standout features of WhatsUp Gold is its customizable drag-and-drop dashboards, which provide users with the flexibility to tailor their monitoring experience according to specific needs. These dashboards present real-time data on device status and performance, allowing users to quickly assess the health of their network. Additionally, the software’s automatic discovery and mapping capabilities enable users to visualize their entire network topology, ensuring that no device goes unnoticed during monitoring. WhatsUp Gold also emphasizes optimization, helping users manage network traffic and bandwidth utilization effectively. By providing actionable insights and unified views of network performance, the software empowers IT teams to troubleshoot issues efficiently. The ability to identify and resolve network and server problems proactively not only enhances operational efficiency but also improves overall user satisfaction by minimizing downtime. In summary, WhatsUp Gold offers a robust and interactive solution for IT infrastructure monitoring, combining ease of use with powerful features. Its focus on real-time visibility, customization, and proactive troubleshooting makes it a valuable tool for organizations looking to enhance their network management capabilities.

**Average Rating:** 4.4/5.0

**Total Reviews:** 380

#### How Do G2 Users Rate Progress WhatsUp Gold?

- **Second by Second Metrics:** 8.5/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 8.6/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.4/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 8.8/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Progress WhatsUp Gold?

- **Seller:** [Progress Software](https://www.g2.com/sellers/progress-software)
- **Company Website:** www.progress.com
- **Year Founded:** 1981
- **HQ Location:** Burlington, MA.
- **Twitter:** @ProgressSW  
48,773 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ab257d11ab0255eaaae8c28635f37e0e64277d81eae954d5985edfd545cd2d69&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fprogress-software%2F&secure%5Burl_type%5D=linkedin_company_website)  
4,205 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Network Engineer, Network Administrator
- **Top Industries:** Information Technology and Services, Education Management
- **Company Size:** 58% Medium, 26% Large

#### What Do G2 Reviewers Say About Progress WhatsUp Gold?

_AI-generated summary from verified user reviews_

##### Pros

- Users find Progress WhatsUp Gold **easy to use** , with clear alerts and real-time monitoring that enhances network management.
- Users value the **real-time monitoring** of Progress WhatsUp Gold, which simplifies network management and enhances responsiveness.
- Users value the **real-time monitoring and clear alerts** from Progress WhatsUp Gold, enhancing network management efficiency.
- Users value the **clear and real-time alert notifications** from Progress WhatsUp Gold, enhancing their network management efficiency.
- Users appreciate the **user-friendly interface** of Progress WhatsUp Gold, making network monitoring straightforward and efficient.

##### Cons

- Users find WhatsUp Gold to be **expensive** due to costly add-ons for features that should be standard.
- Users find the **poor interface design** of Progress WhatsUp Gold to hinder usability and create confusion during operation.
- Users find the **complex setup** of Progress WhatsUp Gold challenging, requiring technical expertise for effective configuration.
- Users note a **high learning curve** with Progress WhatsUp Gold, making initial configuration challenging and time-consuming.
- Users often find the **outdated interface** of Progress WhatsUp Gold confusing, hindering their overall experience and efficiency.

#### What Are Recent G2 Reviews of Progress WhatsUp Gold?

**["Reliable Network Monitoring with Room for UI Improvement"](https://www.g2.com/survey_responses/progress-whatsup-gold-review-12619683)**

**Rating:** 4.5/5.0 stars

_— Udit P._

[Read full review](https://www.g2.com/survey_responses/progress-whatsup-gold-review-12619683)

**["User-Friendly Interface, Comprehensive Monitoring"](https://www.g2.com/survey_responses/progress-whatsup-gold-review-13021374)**

**Rating:** 4.5/5.0 stars

_— Zidani B._

[Read full review](https://www.g2.com/survey_responses/progress-whatsup-gold-review-13021374)

#### What Are G2 Users Discussing About Progress WhatsUp Gold?

- [What is Progress WhatsUp Gold used for?](https://www.g2.com/discussions/what-is-progress-whatsup-gold-used-for)
- [How much does WhatsUp gold cost?](https://www.g2.com/discussions/how-much-does-whatsup-gold-cost)
- [What is up monitoring tool?](https://www.g2.com/discussions/what-is-up-monitoring-tool)
- [How does WhatsUp gold work?](https://www.g2.com/discussions/how-does-whatsup-gold-work)
- [What is WhatsUp Gold monitoring tool?](https://www.g2.com/discussions/what-is-whatsup-gold-monitoring-tool) - 1 comment

### [Sematext Cloud](https://www.g2.com/products/sematext-cloud/reviews)

Sematext Cloud is an innovative, unified platform with all-in-one solutions for infrastructure monitoring, application performance monitoring, log management, real user monitoring, and synthetic monitoring to provide unified, real-time observability of your entire technology stack. It's used by organizations of all sizes and across a wide range of industries, with the goal of driving collaboration between engineering and business teams, reduce the time of root-cause-analysis, understand user behavior and track key business metrics.

**Average Rating:** 4.7/5.0

**Total Reviews:** 38

#### How Do G2 Users Rate Sematext Cloud?

- **Second by Second Metrics:** 9.0/10 (Category avg: 8.3/10)
- **Root Cause Analysis (RCA):** 7.8/10 (Category avg: 8.4/10)
- **Real User Monitoring (RUM):** 8.8/10 (Category avg: 8.3/10)
- **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 8.9/10)

#### Who Is the Company Behind Sematext Cloud?

- **Seller:** [Sematext](https://www.g2.com/sellers/sematext)
- **Year Founded:** 2007
- **HQ Location:** Brooklyn, NY
- **Twitter:** @sematext  
3,758 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=9ef9658abcdda34cebeabbaf1e81c146f42e3177609ece941218d37cd531d44c&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F294493%2F&secure%5Burl_type%5D=linkedin_company_website)  
16 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Information Technology and Services
- **Company Size:** 47% Medium, 45% Small

#### What Are Recent G2 Reviews of Sematext Cloud?

**["Amazing tool to monitor your workloads"](https://www.g2.com/survey_responses/sematext-cloud-review-9107461)**

**Rating:** 5.0/5.0 stars

_— Ganesha B._

[Read full review](https://www.g2.com/survey_responses/sematext-cloud-review-9107461)

**["A next generation monitoring tool"](https://www.g2.com/survey_responses/sematext-cloud-review-8597176)**

**Rating:** 5.0/5.0 stars

_— Daniel A._

[Read full review](https://www.g2.com/survey_responses/sematext-cloud-review-8597176)

#### What Are G2 Users Discussing About Sematext Cloud?

- [What is Sematext Cloud used for?](https://www.g2.com/discussions/what-is-sematext-cloud-used-for)

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Similar Categories

- [AI Agent Observability](/categories/ai-agent-observability)
- [Cloud Infrastructure Monitoring](/categories/cloud-infrastructure-monitoring)
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[Browse Application Performance Monitoring (APM) Themes](/categories/application-performance-monitoring-apm/themes)

 ![Tian Lin](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Tian Lin")
TL

Researched and written by [Tian Lin](https://research.g2.com/insights/author/tian-lin)

Updated June 9, 2025

This page was last updated on June 9th, 2025

Application performance monitoring (APM) tools allow users to monitor and track the performance of particular software or web applications to identify and solve any performance issues that may arise. These solutions provide performance metrics for applications, with specific insights into the statistics such as the amount of transactions processed by the application or the response time to process such transactions. APM products form a baseline for these metrics and monitor the applications for any variance from the baseline. The metrics are displayed in a variety of data visualizations for easy conceptualization of the overall performance. They are very commonly used by application administrators to manage web applications in hopes to discover possible reasons for delays in response time. With the ability to identify and fix any performance issues, businesses can provide an optimal user experience. Some APM solutions may offer similar functionality to [database management systems](https://www.g2.com/categories/database-management) and [network monitoring](https://www.g2.com/categories/network-management) solutions.

To qualify for inclusion in the Application Performance Monitoring category, a product must:

- Monitor and track the performance and response time of software or web applications
- Create a baseline of performance metrics and alert administrators when performance varies
- Provide visual data for users to better understand the performance metrics
- Assist in remedying any application performance issues

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