# Top Free Business Instant Messaging Software - Page 2 ## How Many Business Instant Messaging Software Products Does G2 Track? **Total Products under this Category:** 118 ### Category Stats (Jul 2026) - **Average Rating:** 4.45/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Jostle (+0.24%) - Among all products in this category, Jostle recorded the largest rating increase compared to last month _Last updated: July 21, 2026_ ## How Does G2 Rank Business Instant Messaging Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 215,000+ Authentic Reviews - 118+ 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. [ Troop Messenger ](https://www.g2.com/products/troop-messenger/reviews) By [Tvisha Communications Pvt Ltd](https://www.g2.com/sellers/tvisha-communications-pvt-ltd) [ 4.7/5(103) ](https://www.g2.com/products/troop-messenger/reviews) What do users say? Users consistently praise Troop Messenger for its secure communication and user-friendly interface, which facilitate effective team collaboration. The platform's ability to integrate messaging, video Pros and Cons [ Ease of Use (11) ](https://www.g2.com/products/troop-messenger/reviews?qs=pros-and-cons)[ Lack of Features (5) ](https://www.g2.com/products/troop-messenger/reviews?qs=pros-and-cons) [ Jostle ](https://www.g2.com/products/jostle/reviews) By [Jostle Corporation](https://www.g2.com/sellers/jostle-corporation) [ 4.6/5(237) ](https://www.g2.com/products/jostle/reviews) What do users say? Users consistently praise Jostle for its ease of use and centralized communication, making it a valuable tool for keeping teams connected and informed. The platform's intuitive design allows employees Pros and Cons [ Ease of Use (15) ](https://www.g2.com/products/jostle/reviews?qs=pros-and-cons)[ Slow Loading (4) ](https://www.g2.com/products/jostle/reviews?qs=pros-and-cons) [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) [ ProofHub ](https://www.g2.com/products/proofhub/reviews) By [ProofHub](https://www.g2.com/sellers/proofhub) [ 4.6/5(117) ](https://www.g2.com/products/proofhub/reviews) What do users say? Users consistently praise ProofHub for its ease of use and centralized collaboration, which simplifies project management and team communication. The platform effectively combines various tools, allow Pros and Cons [ Organization (6) ](https://www.g2.com/products/proofhub/reviews?qs=pros-and-cons)[ Lack of Intuitiveness (2) ](https://www.g2.com/products/proofhub/reviews?qs=pros-and-cons) [ Zulip ](https://www.g2.com/products/zulip/reviews) By [Kandra Labs](https://www.g2.com/sellers/kandra-labs) [ 4.6/5(117) ](https://www.g2.com/products/zulip/reviews) What do users say? Users consistently praise Zulip for its organized conversations and intuitive interface, which help streamline team communication and reduce noise. The topic-based messaging system allows for focused Pros and Cons [ Ease of Use (32) ](https://www.g2.com/products/zulip/reviews?qs=pros-and-cons)[ Learning Curve (11) ](https://www.g2.com/products/zulip/reviews?qs=pros-and-cons) [ Otter.ai ](https://www.g2.com/products/otter-ai/reviews) By [Otter.ai](https://www.g2.com/sellers/otter-ai) [ 4.4/5(501) ](https://www.g2.com/products/otter-ai/reviews) What do users say? Users consistently praise the product for its real-time transcription and ease of use, which significantly enhances meeting productivity by allowing them to focus on discussions rather than note-takin Pros and Cons [ Ease of Use (121) ](https://www.g2.com/products/otter-ai/reviews?qs=pros-and-cons)[ Recording Issues (54) ](https://www.g2.com/products/otter-ai/reviews?qs=pros-and-cons) [ TrueConf Server ](https://www.g2.com/products/trueconf-server/reviews) By [TrueConf](https://www.g2.com/sellers/trueconf) [ 4.6/5(63) ](https://www.g2.com/products/trueconf-server/reviews) What do users say? Users consistently praise the product for its reliable performance and strong security, making it ideal for organizations that prioritize data privacy. The seamless integration of messaging and video Pros and Cons [ Reliability (9) ](https://www.g2.com/products/trueconf-server/reviews?qs=pros-and-cons)[ Difficult Setup (10) ](https://www.g2.com/products/trueconf-server/reviews?qs=pros-and-cons) [ Brosix ](https://www.g2.com/products/brosix/reviews) By [Brosix](https://www.g2.com/sellers/brosix) [ 4.6/5(49) ](https://www.g2.com/products/brosix/reviews) What do users say? Users consistently praise Brosix for its ease of use and secure communication, making it a reliable choice for team collaboration. The platform's ability to facilitate quick messaging, file sharing, a Pros and Cons [ Daily Use (4) ](https://www.g2.com/products/brosix/reviews?qs=pros-and-cons)[ Learning Curve (2) ](https://www.g2.com/products/brosix/reviews?qs=pros-and-cons) [ Flock ](https://www.g2.com/products/flock/reviews) By [Flock](https://www.g2.com/sellers/flock-ca1bb983-9bc8-4461-a550-f0cca1f5e0d7) [ 4.4/5(301) ](https://www.g2.com/products/flock/reviews) What do users say? Users consistently praise Flock for its ease of use and efficient communication, highlighting how it simplifies team collaboration through organized channels and quick messaging. The clean interface a Pros and Cons [ Ease of Use (19) ](https://www.g2.com/products/flock/reviews?qs=pros-and-cons)[ App Issues (8) ](https://www.g2.com/products/flock/reviews?qs=pros-and-cons) [ Mattermost ](https://www.g2.com/products/mattermost/reviews) By [Mattermost](https://www.g2.com/sellers/mattermost) [ 4.3/5(368) ](https://www.g2.com/products/mattermost/reviews) What do users say? Users consistently praise Mattermost for its reliability and data security, making it a preferred choice for team collaboration, especially in environments requiring self-hosting. The platform's abili Pros and Cons [ Ease of Use (15) ](https://www.g2.com/products/mattermost/reviews?qs=pros-and-cons)[ Not Intuitive (8) ](https://www.g2.com/products/mattermost/reviews?qs=pros-and-cons) [ Teamwire ](https://www.g2.com/products/teamwire/reviews) By [Teamwire](https://www.g2.com/sellers/teamwire) [ 4.4/5(52) ](https://www.g2.com/products/teamwire/reviews) What do users say? Users consistently praise Teamwire for its strong security features and user-friendly interface, which facilitate efficient communication and collaboration. The end-to-end encryption and fast message Pros and Cons [ Security (4) ](https://www.g2.com/products/teamwire/reviews?qs=pros-and-cons)[ Limited Features (2) ](https://www.g2.com/products/teamwire/reviews?qs=pros-and-cons) [ Rocket.Chat ](https://www.g2.com/products/rocket-chat/reviews) By [Rocket.Chat Technologies](https://www.g2.com/sellers/rocket-chat-technologies) [ 4.2/5(374) ](https://www.g2.com/products/rocket-chat/reviews) What do users say? Users consistently praise Rocket.Chat for its flexibility and control, particularly valuing the ability to self-host and customize the platform to meet specific needs. The strong focus on security and Pros and Cons [ Ease of Use (14) ](https://www.g2.com/products/rocket-chat/reviews?qs=pros-and-cons)[ Not User-Friendly (7) ](https://www.g2.com/products/rocket-chat/reviews?qs=pros-and-cons) [ MyChat ](https://www.g2.com/products/mychat/reviews) By [NetworkSoftwareSolutions](https://www.g2.com/sellers/networksoftwaresolutions) [ 4.6/5(50) ](https://www.g2.com/products/mychat/reviews) What do users say? Users consistently praise the ease of use and secure file sharing capabilities of MyChat, making it a reliable choice for internal communication. The platform's user-friendly interface and efficient f Pros and Cons [ Ease of Use (7) ](https://www.g2.com/products/mychat/reviews?qs=pros-and-cons)[ File Sharing Issues (4) ](https://www.g2.com/products/mychat/reviews?qs=pros-and-cons) [ Zenzap ](https://www.g2.com/products/zenzap/reviews) By [Zenzap](https://www.g2.com/sellers/zenzap) [ 4.6/5(88) ](https://www.g2.com/products/zenzap/reviews) What do users say? Users consistently praise the product for its ease of use and intuitive interface, which simplifies team communication and task management. Many appreciate how it keeps work-related conversations orga Pros and Cons [ Ease of Use (32) ](https://www.g2.com/products/zenzap/reviews?qs=pros-and-cons)[ Missing Features (13) ](https://www.g2.com/products/zenzap/reviews?qs=pros-and-cons) [ Flip ](https://www.g2.com/products/getflip-flip/reviews) By [Flip](https://www.g2.com/sellers/flip-00c9f77e-f5c3-4a08-8c8c-28d5e2a17c48) [ 4.8/5(35) ](https://www.g2.com/products/getflip-flip/reviews) What do users say? Users consistently praise the app for its intuitive design and easy communication, which significantly enhances information sharing among employees. The seamless onboarding process and responsive cust Pros and Cons [ Access Ease (1) ](https://www.g2.com/products/getflip-flip/reviews?qs=pros-and-cons)[ Expensive (1) ](https://www.g2.com/products/getflip-flip/reviews?qs=pros-and-cons) [ Swit ](https://www.g2.com/products/swit/reviews) By [Swit](https://www.g2.com/sellers/swit) [ 4.7/5(361) ](https://www.g2.com/products/swit/reviews) What do users say? Users consistently praise Swit for its intuitive interface and seamless integration of project management and communication tools, which simplifies collaboration and enhances productivity. Many apprec [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. 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