Karabau is an open-source (GPL-3.0-only) Android app by Luiz Renato (ruizlenato). The APK we host is 4.3 MB, it needs Android 12 or newer, and it declares 3 permissions.
The file on this page is Karabau 1.4.2, 4.33 MB, and it installs on Android 12 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.ruizlenato.karabau 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 declares 3 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
- 1.4.2
- Size
- 4.33 MB
- Requires Android
- API 31
- Package
- com.ruizlenato.karabau
- Signature checked on
- Sep 18, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: 9bad5ccfcc8dedc2544fc92d88511e636db5fef3dea7f8e064fe268fadddfaea
Signing certificate (SHA-256): 7a66e7d1ca347558bcde5fc405cb0478f3b81c02b10181cbce58f79795dad840
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
- com.ruizlenato.karabau.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
