Braincup

Train your math skills, memory and focus.

Downloads

Platform	Format	Download
Android	APK	Latest Release
macOS	DMG	Latest Release
Windows	MSI	Latest Release
Linux	DEB	Latest Release
Linux	RPM	Latest Release
Linux	AppImage	Latest Release

Screenshots

Mobile (Android, iOS)

Desktop

Web

Install

macOS

Homebrew

brew install --cask simonschubert/tap/braincup

Arch Linux

AUR

yay -S braincup-bin

Games

Braincup includes 48 activities: 41 scored mini-games plus 7 extras.

Math

• Mental Calculation — Follow expressions; use each result as the base for the next
• Chain Calculation — Solve complex formulas step by step
• Sherlock Calculation — Reach the goal using only the given numbers and operators
• Fraction Calculation — Solve fractions
• Value Comparison — Pick the expression with the highest value
• Bubble Sum — Add numbers on floating bubbles (later rounds blink)
• Quick Sum — Numbers flash one at a time; enter the total
• Missing Operators — Find the operators (+, -, *, /) that make the equation true

Logic

• Anomaly Puzzle — Find the figure that stands out by color and shape
• Rule Shift — Sort cards by a hidden rule that changes once you find it
• Mental Rotations — Decide whether the second block is the first one turned or mirrored
• Path Finder — Follow arrow instructions from a marked start
• Colored Shapes — Add points from correct statements
• Mini Sudoku — Small grid: each row, column and block once per digit
• Mini Chess — Finish a chess scenario as white against the CPU
• Solo Chess — Capture pieces until only the king remains
• Mini Checkers - Find the forcing combination that wins as black on a 6x6 board
• Lights Out — Turn off every light; taps toggle neighbours
• Sliding Puzzle — Slide tiles into order
• Shikaku — Divide the grid into rectangles matching their numbers
• Nurikabe — Paint the sea around numbered islands (no 2×2 blocks)
• Cat Queens — One cat per row, column and color zone; no touching
• Knot — Connect colored dot pairs without crossing; cover every cell
• Tower of Hanoi — Move the stack to the right peg
• Wordle — Guess the five-letter word in six tries
• Prism Clear — Swap matching tiles to clear lines; empty the board
• Bulls & Cows — Guess the secret 4-digit number (Bulls = right place, Cows = wrong place)
• Pattern Sequence — Work out the rule along each row and complete the 3x3 grid

Memory

• Visual Memory — Memorize shapes, then identify the hidden one
• Ghost Grid — Watch tiles light up; tap them back in order
• Orbit Tracker — Track highlighted balls as they move
• Digit Memory — Memorize digits, solve a quick math problem, recall
• Spot the New — Tap the animal you have not seen before
• N-Back — Tap Match when a shape repeats the one N steps back; the level is N
• Simon Says — Tap back the growing pad sequence each round

Perception

• Color Confusion — Tap the color a word is printed in, not the color it names
• Mental Flex — A cue pair sets the rule each round; match the target on that trait
• Flash Crowd — Tap the side that flashed more dots
• Schulte Table — Tap numbers in order as fast as you can
• Flags — Identify countries by their flags; one wrong answer ends the run
• Trio — Find three cards that share a shape, a count or a fill

Extra modes

• IQ Test — 30 matrix-reasoning puzzles in 15 minutes, scored as an estimated IQ with a percentile (an estimate for fun, not a clinical assessment)
• Matchstick Riddles — Move matchsticks to fix equations
• Peg Solitaire — Jump pegs until one remains
• Sudoku — Classic full-size Sudoku with multiple difficulties
• Chess — Full chess vs CPU or pass-and-play
• Reversi — 6x6 Reversi vs CPU (normal or hard) or pass-and-play
• Checkers - 8x8 checkers vs CPU (easy, medium or hard) or pass-and-play

Goal

Build an open source math, memory and focus improvement app. The app itself consists of a bunch of small games. Right now I try to keep the games as simple as possible to allow the implementation for the terminal client.

Sponsors

This project is open-source and maintained by a single developer. If you find this app useful, please consider sponsoring to help take it to the next level with more features and faster updates.

Contribution

Very welcome.

Acknowledgments ♥

https://kotlinlang.org, https://github.com/russhwolf/multiplatform-settings, https://ktor.io, https://soywiz.com, @cssinate for design suggestions and everyone else I missed to mention.

Sea animal icons: "Sea Life 2" by SVG Repo — CC0 1.0

Country flags: flag-icons by Panayiotis Lipiridis — MIT, redrawn as Android vector drawables

Audio

• Menu music: "Drum and Piano Loop" by EEE3333E — CC0 1.0
• Game music: "Parallel Universe" by Andrewkn — CC0 1.0