Every indie developer hits the same wall: Google Play wants 12 testers opted in for 14 days, and you know maybe four people with Android phones. Here is what actually works for finding testers β and what does not.
What does not work
Begging in random Discord servers. You get installs from people who open the app once and vanish. They do not count as engaged testers, and they drop out mid-window.
Tester swap groups. You test my app, I test yours. In theory everyone wins. In practice, half the group ghosts by day 5 and your count collapses.
Paid install farms. These violate Google's policies and can get your developer account terminated. Never worth it.
What works
Your own audience first. If you have any users, mailing list, or social following β even a small one β ask them. People who already care about the product make the best testers.
Developer communities you are actually part of. Reddit's r/androiddev, indie hacker groups, local meetups. Contribute first, then ask.β¦