OpenChordBook is an open-source (GPL-3.0-or-later) Android app by Alexandre Campo. The APK we host is 2.0 MB, it needs Android 7.0 or newer, and it declares 2 permissions.
The file on this page is OpenChordBook 1.18, 2.01 MB, and it installs on Android 7.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time io.github.openchordbook 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 2 permissions, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is GPL-3.0-or-later. We took this build from F-Droid, and the source for this exact version is linked below.
F-Droid, who build and sign this package, flag it: it relies on a network service that is not open source. We pass that on as they recorded it — we have not tested the app ourselves.
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
- 1.18
- Size
- 2.01 MB
- Requires Android
- API 24
- Package
- io.github.openchordbook
- Signature checked on
- Oct 13, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-or-later
- Source code
- Source for this version
File SHA-256: 0990a2c3fd4e7d2f9e433423dbb5daeee5db77c0c95b8549682d0a5a90153fa8
Signing certificate (SHA-256): 5a0b2be71342089e1eddef9d478914dbe3115d3a8390791a11daec89f730aaea
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.
Declared permissions
- INTERNET
- io.github.openchordbook.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
