Improvement Roll is an open-source (GPL-3.0-only) Android app by Vukani. The APK we host is 29 MB, it needs Android 5.0 or newer, and it declares 7 permissions.
The file on this page is Improvement Roll 1.5.1, 28.90 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.improvement_roll 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 7 permissions, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is GPL-3.0-only. 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
- 1.5.1
- Size
- 28.90 MB
- Requires Android
- API 21
- Package
- com.improvement_roll
- Signature checked on
- Sep 21, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: be040ffda8d7d79ef2bc3f3a6ff4140e067b65b2fd0ee192d0e21d9e94d9070b
Signing certificate (SHA-256): d207502539bcb6559a621b651c7e35ca0e43969b4e197d3a16ee68be42b67e3a
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
- WRITE_EXTERNAL_STORAGE
- INTERNET
- POST_NOTIFICATIONS
- RECEIVE_BOOT_COMPLETED
- FOREGROUND_SERVICE
- WAKE_LOCK
- ACCESS_NETWORK_STATE
Screenshots
