Mental Math

Master Your Mental Math

Overview

• Mental Math is a minimalist, open-source Android app designed to sharpen your arithmetic skills.

• Free of ads and trackers, it offers a distraction-free environment to practice on your own or go head-to-head with friends.

Tailored Training

• Custom Operations: Mix and match addition, subtraction, multiplication, and division.

• Nine Difficulty Tiers: Fine-tune the challenge to match your current skill level.

• Smart Algorithms: Exercises are generated using traditional long-form methods to ensure realistic, balanced practice.

Compete and Connect

• Task Mode: Set a fixed goal of 10 to 50 problems.

• Timed Mode: Race the clock in sessions lasting up to five minutes.

• Versatile Challenges: Share links to replay your exact game sequence or launch a fresh, fair challenge with your friends.

Track Your Growth

• Detailed Analytics: Review your accuracy, speed, and comprehensive performance summaries after every game.

• Personal Leaderboards: Keep tabs on your top 10 scores for every difficulty setting.

• Complete History: Archive all your past games, sort them by date or score, and revisit your progress anytime.

User-Centric Features

• Mindful Reminders: Build a habit with optional, customizable notifications sent to your device.

• Focus-First Design: A clean interface that supports both light and dark modes, stripped of all unnecessary distractions.

• Privacy Guaranteed: This app is fully open source and free. We do not collect, store, or process your personal data.

FAQ

Q: Can I use this app without worrying about ads or my data being collected?

A: Absolutely! We're really proud to say that "Master Your Mental Math" is completely free of ads and trackers. Plus, it's fully open source, which means we guarantee that we do not collect, store, or process any of your personal data. Your privacy is a top priority for us.

Q: What types of math operations can I practice with the app?

A: You have full control over your training! You can easily mix and match any combination of addition, subtraction, multiplication, and division. This flexibility allows you to focus precisely on the areas where you want to build your greatest strength.

Q: How does the app ensure the difficulty matches my skill level?

A: We've built in a comprehensive system with nine distinct difficulty tiers. This extensive range allows you to fine-tune the challenge to perfectly match your current mathematical ability, ensuring your practice is always engaging and effectively pushes you to improve.

Version History

v24——11 May 2026

Practice mental math solo or with friends - open source, ad-free and private. Download the latest version of Mental Math to enjoy new features and updates immediately!

*24

- Added French translation contributed by @mdk. Thank you! :)

- Removed “Total Score” and renamed “Active Score” to simply “Score” to reduce confusion

- Added tooltips to the game overview for improved clarity

- Reworked the speed statistic: now displayed as time per correct answer instead of correct answers per minute

- Fixed a crash on systems without a default browser or mail client

- Added a message to the problem overview when no problems have been solved

*23

- Input field is now clickable to switch input direction while in game

- Also added a popup notification when switching input direction in game

- Improved a few colors

*22

- Prepared the app to support translations in the future. Please consider contributing! See the "Contributing" section on the website (via the About button in the app).

- Added RTL (Right-to-Left) layout support for languages like Arabic and Hebrew. The UI is still English-only, so minor text formatting issues may occur until translations are added.

- Removed some unnecessary permissions.