Quick answer
A modern, fast, and tactile mental math training game
F-Droid repository metadata
Features
100% Offline & Private - Works entirely without an internet connection. - Zero analytics trackers, zero telemetry, zero data collection. - All your progress, streak stats, and mistake drills remain stored securely on your local device.
No Ads, No Microtransactions - No pop-up ads, banner ads, or paywalled levels. - Pure, uninterrupted learning and math flow state.
Game Modes - Level Progression: 60 structured levels spanning Addition, Subtraction, Multiplication, Division, and Mixed Boss Fights. - Daily Challenge: Fresh daily math puzzles to build and maintain your streak. - Time Attack: 60-second high-speed arithmetic sprint. - Survival Mode: 3 lives, progressive difficulty, test how far you can go. - Target 24: The classic 4-number 24 puzzle with unlimited combinations and an integrated solver. - Local 2-Player Duel: Split-screen head-to-head math battle on a single device. - Targeted Practice: Custom sessions by category and difficulty (Easy, Medium, Hard, Master).
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
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