# Braincup (open-source game)

> Braincup is a free, open-source game for Android and iOS. Train your focus, memory and math skills. It has 321 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid, Google Play and the App Store.

Mini-games for memory, focus, logic and math, plus Learn Math lessons with certificates. Mental Calculation: Follow expressions; each result is the base for the next. Chain Calculation: Solve a formula step by step. Sherlock Calculation: Reach the goal with the given numbers and operators. Fraction Calculation: Solve the fractions. Value Comparison: Pick the expression with the highest value. Bubble Sum: Add the numbers on the floating bubbles. Quick Sum: Numbers flash one at a time; enter the total. Anomaly Puzzle: Find the figure that stands out. Pattern Sequence: Work out the rule along each row and complete the grid. Path Finder: Follow the arrows from the marked start.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/SimonSchubert/Braincup |
| Platforms | Android, iOS |
| Built with | Kotlin Multiplatform |
| GitHub stars | 321 |
| License | Apache-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/com.inspiredandroid.braincup/ (package com.inspiredandroid.braincup) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.inspiredandroid.braincup |
| App Store | https://apps.apple.com/app/id1483376887 |
| Website | https://simonschubert.github.io/Braincup/ |
| Official | no |
| Category | Games |
| Latest release | v3.8.0 (Oct 4, 2026) |
| Last commit | Oct 7, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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