← All apps

Mathe-Trainer

Name: Mathe-Trainer
Author: Christoph Bayer

Christoph Bayer

Mental arithmetic practice for primary school. German interface.

Education
FOSS
Free
No ads
No tracking

Android only

Get Mathe-Trainer

Get it on F-Droid Get it on GitHub Get it on Zapstore

What are these stores? F-Droid, GitHub, Zapstore

Mental arithmetic practice on a tablet, for children from their first school year. The app measures the time to the correct answer and turns it into a learning curve and leaderboards, where several children on the same device compete with each other. The interface is in German only. It runs entirely offline. No account, no ads, no analytics and no internet permission - the app cannot send anything anywhere.

Developer: Christoph Bayer
Source code: github.com/chrbayer/mt
Added to AppCosmos: 10 October 2026
License: GPL-3.0-or-later