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Mental Math

Name: Mental Math
Author: HeldDerTierwelt

HeldDerTierwelt

Practice mental arithmetic solo or compete with friends.

Games
FOSS
Free
No ads
No tracking

Android only

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What are these stores? Google Play, Aurora Store, F-Droid, Zapstore

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"Mental Math" is a simple and clean Android app for mental arithmetic training. You can practice on your own or challenge friends to compete and improve your skills. The app is open source and respects your privacy. Customizable Training Select which arithmetic operations to include (+, −, ×, ÷). For each operation, choose from nine difficulty levels to customize your training precisely to your skill level.

Developer: HeldDerTierwelt
Website: mental-math.codeberg.page/
Source code: codeberg.org/Mental-Math/MentalMath
Added to AppCosmos: 10 October 2026
License: GPL-3.0-only