I'm developing Zen, an Android ambient-sound player and mixer. The current Google Play closed-test release still appears under the earlier name, Zihuatanejo.

The idea is simple: choose sounds, combine them into a mix, adjust their levels, and return to a saved soundscape when you want a quiet break. The current test includes saved mixes, favorites, background playback and playback timers.

For this round, I want to learn how those flows work on other people's phones. In particular:

  • Can a new user create, save and reopen a mix without instructions?
  • Does playback remain reliable after locking the screen?
  • Do sound loops, volume controls and the timer behave as expected?

I'm looking for unpaid volunteers aged 18+ with Android 8.1 or newer in Georgia (the country), the United Kingdom or the United States. Please stay opted in for at least 14 consecutive days and use the app regularly during that period. I'm seeking honest feedback, including reasons you would stop using it.

Use the same Google account as your phone's Play Store throughout:

  1. Join the testing group: https://groups.google.com/g/testers-community
  2. Open https://play.google.com/apps/testing/com.sauna.app and choose Become a tester.
  3. Install Zihuatanejo from https://play.google.com/store/apps/details?id=com.sauna.app and open it.

The group grants eligibility; the Play opt-in is a separate step. This build contains test ads, so please don't click them.

Feedback is welcome in the comments or at oneringtorulethemall11@proton.me. If something breaks, please include your phone model, Android version, and steps that led to the issue.

Disclosure: I used AI assistance to draft this invitation.