[DEV] Empiplayer closed beta for personal MP3/M4B and OneDrive audiobooks

I’m associated with Empiplayer and am looking for genuine Android listeners who keep their own MP3/M4B audiobooks—locally or in OneDrive—and would like to try a player built around that use case.

Empiplayer remembers position per book/file, supports M4B chapters and multi-file books, and includes bookmarks, playback speed, skip controls, sleep timer, and read-only OneDrive access. There are no ads or analytics, and participation is free and uncompensated.

For the Google Play closed test, Android volunteers must privately provide the Gmail address they use with Google Play, then use Google’s private opt-in link, install the app, and remain opted in for 14 continuous days. A form submission alone is not a Play opt-in. Please use the app genuinely from time to time and share feedback if you can.

Private signup (please do not put your email in comments): https://torindrax.com/empiplayer/#beta

There is also a separate iPhone/TestFlight interest option on the form, but iOS signups do not count toward the Android test. I’ll stay available here to answer questions.