Try the beta
Two tablets, one open book. Help us polish it before launch.
- Join the testers group: DuoStave testers group
- On your Android tablet, open the link below with the same Google account and tap Become a tester.
- Install DuoStave from Google Play. Beta updates arrive on their own.
Sign-ups open very soon. Check back in a few days.
What to expect
- Android 8.0 or later. It is made for tablets.
- For the open book you need two tablets. With one you can still read, mark up and practise.
- Everything works offline. Your scores and markings stay on your tablets.
- It is free during the beta, with 2 GB of cloud per duo if you turn on cloud backup.
- It is a beta: things can break. Now and then, make a backup to a file from Settings.
Known issues
- Sometimes both tablets end up on the same side after pairing. Tap Swap sides or, if it stays the same, Forget this pair on both and pair again.
- After Swap sides, the pairing screen still names the old side, although the pages do swap.
- Writing with the pen, a hand resting on the screen can now and then turn or move the page.
- The metronome can sound out of time at moments.
- We have tested mostly on TCL NXTPAPER tablets. On other tablets things may behave differently.
Updated with each beta release. Last reviewed: 23 October 2026.
Tell us what breaks
In the app, Settings, Advanced, Support report gathers the technical data we need to fix it. It never includes your scores.
Something not working, or an idea? Write to [email protected].