Kaku is an open-source (BSD-3-Clause) Android app by 0xbad1d3a5. The APK we host is 75 MB, it needs Android 5.0 or newer, and it declares 3 permissions.
The file on this page is Kaku 1.3.78, 74.62 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 ca.fuwafuwa.kaku 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 3 permissions, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is BSD-3-Clause. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from May 14, 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
- 1.3.78
- Size
- 74.62 MB
- Requires Android
- API 21
- Package
- ca.fuwafuwa.kaku
- Signature checked on
- Sep 23, 2026
- Where this file came from
- F-Droid
- Licence
- BSD-3-Clause
- Source code
- Source for this version
File SHA-256: e780cb76161a881a3f67aa3be231928397b1cf1f26980f9f2fcdd12f7b31beeb
Signing certificate (SHA-256): 0a7c268f1ca03fae3043c6a5ef521b0f53b9b21b11e28dd5a34fb84088938337
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
- SYSTEM_ALERT_WINDOW
- FOREGROUND_SERVICE
- ACCESS_NETWORK_STATE
