Braincup
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.
- Android
- iOS
- Kotlin Multiplatform
- Games
- Actively maintained
About Braincup
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.
Privacy and F-Droid
F-Droid builds Braincup from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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What is Braincup?
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.
Is Braincup free and open source?
Yes. Braincup's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install Braincup?
You can install Braincup from F-Droid (package com.inspiredandroid.braincup), from Google Play and from the App Store; the links are on this page. Its GitHub repository also publishes releases (latest: v3.8.0).
Is Braincup still maintained?
The repository's most recent commit was on Oct 7, 2026. Its F-Droid listing was last updated on Oct 6, 2026. appsgit only lists apps whose repository had a commit in the last six months.