Atrium is an open-source (GPL-3.0-or-later) Android app by retransmit. The APK we host is 34 MB, it needs Android 7.0 or newer, and it declares 5 permissions.
The file on this page is Atrium 1.9.1, 33.85 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 app.atrium 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 5 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
- 1.9.1
- Size
- 33.85 MB
- Requires Android
- API 24
- Package
- app.atrium
- Signature checked on
- Oct 26, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-or-later
- Source code
- Source for this version
File SHA-256: 821f3efd94737adb96aad907bf8970cec139542dd0d53367137e7a2aaf0fcbd3
Signing certificate (SHA-256): 5ebad1ff2f9cdc63f28b364addf9e858330db26909d9eba8dfbccb998de37351
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
- USE_BIOMETRIC
- USE_FINGERPRINT
- app.atrium.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
