Voucher Calc

Tobias Mueller

Tools

Voucher Calc is an open-source (GPL-3.0-only) Android app by Tobias Mueller. The APK we host is 1.2 MB, it needs Android 4.0 or newer, and it declares no permissions at all.

The file on this page is Voucher Calc 0.3, 1.22 MB, and it installs on Android 4.0 and newer.

We compared the signing certificate of this build with the certificate recorded the first time de.cryptobitch.muelli.vouchercalc 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 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 Jul 28, 2016, over 10 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.

Download APK · 1.22 MB

Version: 0.3
Size: 1.22 MB
Requires Android: API 15
Package: de.cryptobitch.muelli.vouchercalc
Signature checked on: Sep 21, 2026
Where this file came from: F-Droid
Licence: GPL-3.0-only
Source code: Source for this version

File SHA-256: 578c7ac201b8225871a3446148659fdcc4fb13c28cc9bda5e1273fc9d27aa1b4

Signing certificate (SHA-256): 5c2ba653c6aa50361f29b063a8b6baf45e4f78bd2201ef29657ec5fc52af75d4

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.