Rivia is an open-source (MIT) Android app by Emir Zakrewski. The APK we host is 22 MB, it needs Android 4.1 or newer, and it declares no permissions at all.
The file on this page is Rivia 1.0.0, 22.22 MB, and it installs on Android 4.1 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.catalin.rivia 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 no permissions at all.
Its licence is MIT. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Sep 2, 2022, over 4 years ago. It still installs; it is simply not being updated.
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
- 1.0.0
- Size
- 22.22 MB
- Requires Android
- API 16
- Package
- com.catalin.rivia
- Signature checked on
- Sep 22, 2026
- Where this file came from
- F-Droid
- Licence
- MIT
- Source code
- Source for this version
File SHA-256: 4cee3dd407fc10de2df3bdca63d1e8c56a0f6a4142745b30116e7db1d6243716
Signing certificate (SHA-256): ecd37ac5dee494a1674467767cfdec63b16de2a27066829bec17a4fe98e1d6b4
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.
Screenshots



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