Android apps and free software

Hello world! This is the main page for my free and open-source applications.


Currently, I'm working on two Android apps, the recipe manager Tournant and the MIDI sheet music page-turner DoReMidi.

Zimbelstern's F-Droid repository

You can find my Android apps in this repo:

This is the official repository of apps from zimbelstern.eu, to be used with F-Droid.

To add it to your F-Droid client, scan the QR code (click it to enlarge) and open with F-Droid or add this URL manually in the F-Droid settings:


SHA-256 fingerprint:
2851 58DE CEF3 7CB8 DE7C 5AF1 4818 ACBF 4A9B 1FBE 6311 6758 EFC2 67F9 71CA 23AA

How to contact me

I've published recently developed software on Github.

If you would like send me an email, please type post for the local part of my email address and use this domain's name (the part after https:// in your address bar). If you are German-speaking, you can also visit my personal homepage.

What does Zimbelstern mean?

Have a look at Wikipedia's explanation.