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Last updated on: 2026-06-04
Android Apps > Educational > Mental Math
Mental Math icon

Mental Math

24
HeldDerTierwelt
5.00
59 reviews
5,000+
Downloads
Free

Practice mental math solo or with friends - open source, ad-free and private.

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About Mental Math

Mental Math is an educational app developed by HeldDerTierwelt.

Download Statistics

Mental Math has been downloaded 9.8 thousand times. In the last 30 days, the app was downloaded 3 thousand times.

User Ratings

Mental Math is rated 5.00 out of 5 stars. The rating is based on 59 ratings.

App Information

Mental Math is FREE to download. The APK download size is 11.13 MB. The latest version available is 24. The last update was on May 4, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play November 2025.

Description
"Mental Math" is a simple and clean Android app for mental arithmetic training. You can practice on your own or challenge friends to compete and improve your skills. The app is open source and respects your privacy.

Customizable Training
Select which arithmetic operations to include (+, −, ×, ÷). For each operation, choose from nine difficulty levels to customize your training precisely to your skill level.

Two Game Modes
• Task Mode lets you complete a fixed number of tasks (10, 20, 30, 40, or 50).
• Timed Mode challenges you to solve as many tasks as possible within a time limit (1, 2, 3, 4, or 5 minutes).

Challenge your Friends
You can share a game link to:
1. Replay a completed game with the exact same tasks to compare scores with friends.
2. Start a new game with preset settings for a fair and fresh challenge for everyone.

Difficulty Calculation
Task difficulty is determined using algorithms based on column addition, column subtraction, long multiplication, and long division, creating realistic and well-balanced exercises.

Detailed Results
After each game, view a detailed summary that includes your selected settings, your performance (accuracy, speed, and score), and a complete list of all your tasks and answers for review.

Personal Leaderboard
Your top 10 results are displayed separately for each combination of settings, allowing you to easily track your progress. You can also review detailed summaries of your top games at any time.

Game History
Explore the complete history of all your scored games. You can sort the list by time or numerically to find specific games. Anytime, you can revisit any match to view a detailed summary of its results.

Practice Reminders
Set up periodic reminders to support regular mental math practice. Notifications are sent in the evening (around 6 p.m.) and can be scheduled daily, every three days, or weekly.

Clean Design
A simple and minimalist app design with no unnecessary elements or distractions, designed to keep your focus fully on mental math training. Supports both light and dark modes.

Open Source, Private, Free & Ad-free
"Mental Math" is fully open source, free to use, and does not contain any ads. It also does not collect, store, or process any personal data, nor does it use trackers or third-party services.

Recent changes:
- 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
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More data about Mental Math

Price Free to download
Total downloads 9.8 thousand
Recent downloads 3 thousand
Rating 5.00 based on 59 ratings
Ranking Not ranked
Version 24
APK size 11.1 MB
Number of libraries ?
Suitable for Everyone
Ads NO ads

App Performance Report

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Google Play Rating history and histogram

59
0
0
0
0

Downloads over time

Mental Math has been downloaded 9.8 thousand times. Over the past 30 days, it averaged 100 downloads per day.

Changelog of Mental Math

  • May 4, 2026UpdateVersion 24
  • Apr 23, 2026Installs5,000+ installs
  • Apr 8, 2026UpdateVersion 23
  • Mar 14, 2026UpdateVersion 22
  • Feb 24, 2026UpdateVersion 21
  • Feb 15, 2026UpdateVersion 20
  • Jan 28, 2026Installs1,000+ installs
  • Jan 3, 2026UpdateVersion 19
  • Dec 31, 2025Installs500+ installs
  • Dec 8, 2025UpdateVersion 18
  • Dec 6, 2025Installs100+ installs
  • Dec 2, 2025UpdateVersion 17
  • Dec 2, 2025Installs50+ installs
  • Nov 28, 2025New AppVersion 15 in EDUCATIONAL for Free
Show more Show less

Developer information for HeldDerTierwelt

HeldDerTierwelt

mental_math_app@pm.me

Website

N/A

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Comments on Mental Math for Android

★★★★★ Thomas Fuhrt · Dec 14, 2025
Fun, lightweight app to challenge yourself and friends. No Ads or annoying social media embedding. FOSS done right 👍
★★★★★ Mohammad Sarabi · Dec 14, 2025
Clean and minimalistic. My only complaint is that numbers get a little repetitive after a while. I wish it was a little more random.
★★★★★ Tanmay Chandane · Jan 26, 2026
Stupidity simple app! No clutter. Love it.
★★★★★ ababod boody · May 4, 2026
Absolutly awesome very good for even people from age 5-18
★★★★★ G. S. · Dec 6, 2025
Great way to prevent brain rot, and it doesn't want your data!

Google Play Rankings for Mental Math

This app is not ranked

Technologies used by Mental Math

Mental Math is requesting 4 permissions and we don't have library information (yet).

Permissions

System tools
run at startup, prevent phone from sleeping
Extra
android.permission.POST_NOTIFICATIONS, com.helddertierwelt.mentalmath.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
We haven't collected library information for this app yet. You can use the AppBrain Ad Detector app to detect libraries in apps installed on your device.
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