Find 12 real testers for your closed test
Google requires 12 testers for 14 days before production. Happy Testers pairs you with other developers who test your app while you test theirs — privately, reliably, and free.
PixelNote
your app
TrailMate
their app
One-to-one exchanges
No noisy group chats. You agree privately with one developer: I'll test yours, you test mine.
Reputation you can trust
Completion rates, reviews and badges surface reliable testers and quietly hide the ghosters.
Built-in chat & tracking
Share your opt-in link, track the 14-day window together, and complete the exchange in-app.
How it works
Four steps from listing to a completed test.
List your app
Add your closed-testing opt-in link and how many testers you need.
Find a partner
Browse apps that need testers and start an exchange in one tap.
Test each other
Install, test for 14 days, chat, and keep each other on track.
Build reputation
Complete together, leave a review, and unlock trust badges.
Ready to finish your closed test?
Join developers finding reliable testing partners in minutes — not weeks of Telegram spam.
Sign in with Google · takes 10 seconds