Diaguard: Diabetes Diary is an open-source (GPL-3.0-or-later) Android app by Faltenreich. The APK we host is 12 MB, it needs Android 5.0 or newer, and it declares 6 permissions.
The file on this page is Diaguard: Diabetes Diary 3.15.1, 11.65 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 com.faltenreich.diaguard 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 6 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.
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
- 3.15.1
- Size
- 11.65 MB
- Requires Android
- API 21
- Package
- com.faltenreich.diaguard
- Signature checked on
- Sep 19, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-or-later
- Source code
- Source for this version
File SHA-256: 1355f824abc85e7601b050008fbeb5330fa8c0034a4c012c2b8189d2de6c222e
Signing certificate (SHA-256): 6f67b555a0fa64c4f0f16c85fa5796e407e9f9977db35406e62e0f42346045cd
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
- ACCESS_NETWORK_STATE
- WRITE_EXTERNAL_STORAGE
- VIBRATE
- POST_NOTIFICATIONS
- com.faltenreich.diaguard.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots


