Nightbell is an open-source (Apache-2.0) Android app by river. The APK we host is 2.7 MB, it needs Android 8.0 or newer, and it declares 14 permissions.
The file on this page is Nightbell 3.19.0, 2.65 MB, and it installs on Android 8.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time me.river.nightbell 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 14 permissions, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is Apache-2.0. 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
- 3.19.0
- Size
- 2.65 MB
- Requires Android
- API 26
- Package
- me.river.nightbell
- Signature checked on
- Oct 28, 2026
- Where this file came from
- F-Droid
- Licence
- Apache-2.0
- Source code
- Source for this version
File SHA-256: c519cf471d2d015544970ccb4fe58ef06e6c3848dc71df7bd79b57205f9871cf
Signing certificate (SHA-256): 20d8abdaa8416a9a751e3ea144ef1523d7ddbaaeee9ec6be01d63a65574a70de
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
- VIBRATE
- POST_NOTIFICATIONS
- WAKE_LOCK
- RECEIVE_BOOT_COMPLETED
- REQUEST_INSTALL_PACKAGES
- USE_FULL_SCREEN_INTENT
- REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- ACCESS_NOTIFICATION_POLICY
- POST_PROMOTED_NOTIFICATIONS
- FOREGROUND_SERVICE
- FOREGROUND_SERVICE_SPECIAL_USE
- me.river.nightbell.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
