Easy Ear Trainer for Chord Progressions is an open-source (GPL-3.0-only) Android app by Tom Knuf. The APK we host is 29 MB, it needs Android 5.0 or newer, and it declares no permissions at all.
The file on this page is Easy Ear Trainer for Chord Progressions 0.1.9, 29.32 MB, and it installs on Android 5.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time org.easyear entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.
The manifest inside the APK declares no permissions at all.
Its licence is GPL-3.0-only. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Aug 14, 2021, over 5 years ago. It still installs; it is simply not being updated.
We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.
- Version
- 0.1.9
- Size
- 29.32 MB
- Requires Android
- API 21
- Package
- org.easyear
- Signature checked on
- Sep 22, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: f5a310884fd37653a4135f04cf20a8ec440b4105a20293cfe6f8f4cf45c3e3c5
Signing certificate (SHA-256): 94ee41595d07be16964496d9987c72225a8cf4ab79fa006323dd284f05736f93
We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.
Screenshots
