Start.io Reviews & Product Details

Start.io is a mobile marketing and audience platform. Start.io (formerly StartApp) empowers the mobile app ecosystem and simplifies mobile marketing, audience building and mobile monetization. Start.io’s direct integration with over 500,000 monthly active mobile apps provides access to unprecedented levels of global first-party data, which can be leveraged to understand and predict behaviors, identify new opportunities and fuel growth.

Seller

Start.io

Discussions

Start.io Community

Solution Type

All-in-One

Overview by

Omri Barnes

Value at a Glance

Averages based on real user reviews.

Time to Implement

1 month

Perceived Cost

$$$$$

View More Pricing Information

Top-Rated Alternatives

View All Alternatives

User Insights

Average based on 42 real user reviews.

Implementation Time

1 month

Perceived Cost

$$$$$

Start.io Integrations

(1)

Integration information sourced from real user reviews.

ADIL N.

Publisher

Small-Business (50 or fewer emp.)

7/25/2026

"Poor Support Overshadows Usability"

0/5

What do you like best about Start.io?

Simple UI, straightforward integration, and an easy-to-follow guide. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

I'm a publisher at Start.io, and I faced a problem for which I contacted them 16 days ago without any response. There is a withdrawing problem, and despite sending them a lot of emails, I haven't been contacted back. Review collected by and hosted on G2.com.

Jeet R.

Software Developer

Mid-Market (51-1000 emp.)

11/26/2025

"A Steady Addition to My Ad Mediation Setup"

3.5/5

What do you like best about Start.io?

I like how easily Start.io fits into my existing Google Ads mediation setup. The integration is pretty straightforward on iOS, and once it’s in place, it delivers a steady fill rate without me having to constantly tweak things. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

The only thing that slows me down at times is the documentation—it’s functional, but it feels a bit thin in certain areas. I’ve had moments where I had to dig around or test things manually to figure out the right setup. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

Thank you for sharing your feedback with us. We are delighted to hear that Start.io fits easily into your existing Google Ads setup. We appreciate your partnership and support!

Subham S.

Graphic Designer & Content Developer

Small-Business (50 or fewer emp.)

7/16/2025

"It's one of the best product i have come across within few months"

5/5

What do you like best about Start.io?

Start.io offers an incredibly intuitive platform that simplifies mobile ad monetization. The integration process was quick, the dashboard is easy to understand, and the real-time analytics help me make smarter decisions. I’ve noticed a visible improvement in app revenue and user engagement since using it. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

While the platform works smoothly overall, I’d love to see more detailed breakdowns in the analytics section, especially around user demographics and device-level performance. A bit more transparency around eCPM changes would also help in planning better campaigns. Review collected by and hosted on G2.com.

What problems is Start.io solving and how is that benefiting you?

Start.io is helping me solve the challenge of monetizing mobile traffic efficiently without compromising user experience. It provides a seamless ad integration process, reliable fill rates across regions, and competitive eCPMs. This has directly contributed to improved revenue streams and made it easier to scale my app business sustainably. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

We're thrilled to hear that Start.io has been one of the best products you've come across! We appreciate your feedback on the intuitive platform, quick integration process, and real-time analytics. We appreciate your feedback and will take it into consideration for future improvements. If you’d like to connect further, feel free to reach out to us at marketing@start.io.

Roshish S.

Mid-Level Flutter Developer

Mid-Market (51-1000 emp.)

7/9/2025

"App is great for monetization and smart targeting"

4/5

What do you like best about Start.io?

It is great for mobile monetization and user targeting. Quite easy to use. SDK is very simple to implement and integrate. Everything worked smoothly once it was done. It has been our go-to platform for mobile growth. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

I think we would benefit from it more if there was some easier integration with CRM tools we already use but other than that I have no complains. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

It's fantastic to hear that Start.io is helping you reach the right users effectively with accurate audience targeting and real-time data. We're committed to providing valuable solutions for mobile monetization and user engagement. Thank you for choosing Start.io!

Koray F.

Senior Supply Director

Mid-Market (51-1000 emp.)

11/4/2025

"Senior Supply Director, adWMG"

4.5/5

What do you like best about Start.io?

They have a Very knowledgeable team to work with. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

They did not wish to promote our partnership with us via LinkedIn. We have seen them promote other partnerships historically, but they chose not to do this with us. This was disappointing. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

Thank you for sharing your feedback with us. We are delighted to hear that you find our team knowledgeable and that we have been able to provide great SDK supply for your advertisers. We appreciate your partnership and support!

Verified User in Online Media

Enterprise (> 1000 emp.)

11/7/2025

"Proactive Features That Exceed Expectations"

5/5

What do you like best about Start.io?

What I like most is proactivity and professionalism and customer support Review collected by and hosted on G2.com.

What do you dislike about Start.io?

I dislike most in terms of business the IVT recurring concerns Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

Thank you for your positive feedback on our proactive features and customer support. We strive to exceed expectations and provide professional service.

Verified User in Marketing and Advertising

Enterprise (> 1000 emp.)

11/4/2025

"Impressive Growth and Leadership, But Integration Overload Challenges US Expansion"

4/5

What do you like best about Start.io?

Strong offering, great sales leadership and desire to grow their business in thoughtful ways Review collected by and hosted on G2.com.

What do you dislike about Start.io?

Too many direct integrations that make it hard for us to win business in the US Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

Thank you for your feedback. We are pleased to hear that our strong offering and great sales leadership are resonating with you. If you’d like to connect further, feel free to reach out to us at marketing@start.io.

Biraj B.

Conversion Specialist

Small-Business (50 or fewer emp.)

7/15/2025

"As a digital marketer I loved how my overall ROAS went up after I started using Start.io"

4.5/5

What do you like best about Start.io?

I love their targeting features. How I am able to target my specific audience that are most likely to convert. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

To be honest, I don't have any downside while using Start.io till the date. I could be the happiest customer of theirs 😊. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

Thank you for sharing your positive experience with Start.io! We're glad to hear that our targeting features have been beneficial for your marketing efforts.

Verified User in Marketing and Advertising

Mid-Market (51-1000 emp.)

7/9/2025

"I am exploring start.io, it looks like it is promising as it has a great data driven approach."

3.5/5

What do you like best about Start.io?

It brings insights of the user and the monetization tools in one place, making it like a combo for both marketers and developers. It acts like a swiss army knife. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

It is still early to say anything, but there should be more case studies and like real world examples available upfront, so one can grow and learn accordingly. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

We're pleased to hear that Start.io is helping you find the right audience and improve your marketing campaigns. Our goal is to provide tools that lead to better ROI and we're glad to hear about your positive experience. If you’d like to connect further on case studies, feel free to reach out to us at marketing@start.io.

Syed Jawad Raza S.

Head of Creative and Marketing

Design

Small-Business (50 or fewer emp.)

7/9/2025

"A bridge between marketers and publishers"

4.5/5

What do you like best about Start.io?

Very focused and detailed customization options. Review collected by and hosted on G2.com.

What do you dislike about Start.io?

UI could be better and smoother. It's a bit overwhelming. Review collected by and hosted on G2.com.

Response from Jolie Horne of Start.io

edit

Thank you for your feedback! We're pleased that you find our customization options to be focused and detailed. If you’d like to connect further, feel free to reach out to us at marketing@start.io.