brainjogging is an open-source (GPL-3.0-only) Android game by Fabian Kropfhamer. The APK we host is 17 MB, it needs Android 4.1 or newer, and it declares no permissions at all.
The file on this page is brainjogging 0.1.0, 16.74 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 de.telefongarten.brainjogging 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 game does.
The manifest declares no permissions at all.
Its licence is GPL-3.0-only. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Jan 18, 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
- 0.1.0
- Size
- 16.74 MB
- Requires Android
- API 16
- Package
- de.telefongarten.brainjogging
- Signature checked on
- Sep 17, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: 47c3330872447f1673d55c7df5c6273e486270f5dd2d2cec33ce2236948d0a2c
Signing certificate (SHA-256): be3d6aa3076f7edf2aa5c2d75f2fde22725568a85b7cce39cdb33abdee46768c
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

