# (Open Source) Mental Math — Fast arithmetic training

> Free, open-source mental math trainer with timed tests and custom drills. (iPhone/iPad app by AHMET EMRE DEDELER.)

- Source: https://appshunter.io/ios/app/open-source-mental-math/id6788418444 (this page in markdown: same URL + `.md`)
- Developer: [AHMET EMRE DEDELER](https://appshunter.io/developer/1870913629)
- Category: Education, Productivity
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.4 · 42 MB
- Languages: American English
- Released: 2026-07-14
- Data updated: 2026-07-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/open-source-mental-math/id6788418444/reviews.md

## What is (Open Source) Mental Math?

A free, open-source mental math trainer. No ads, no paywalls, no locked content — every exercise and difficulty is included.

Sharpen your arithmetic with quick timed tests, custom drills, and a library of mental-math tricks. Everything runs offline and your progress stays on your device.

FEATURES

Timed Tests
A daily 60-second challenge plus sprints, a two-minute marathon, per-operation tests, and a hard mixed test — each with best scores.

Custom Trainer
Pick a number domain (Times tables, Natural, Decimal, Money, Huge), choose one or more exercises, and set per-exercise difficulty from Easy to Super hard.

All the Operations
Addition, subtraction, multiplication, division, squares, square roots, fractions, percentages, and modulo.

Mental Math Tricks
Dozens of step-by-step tricks for faster addition, subtraction, multiplication, division, and squares — with worked examples and favorites.

Progress Tracking
Solved totals, accuracy, best run, daily streak, longest streak, and a weekly activity view.

Fast Sessions
An on-screen keypad with instant answer checking, haptics, and sound.

No ads. No paywalls. No account required.

100% Open Source
The complete source code is public - see it, audit it, or contribute at https://github.com/Open-Apps-Studio/mental-math

## Key features

- Timed arithmetic tests
- Customizable drills
- Mental math tricks library
- Offline progress tracking
- Multiple operation types
- Fast session interface


## Frequently asked questions about (Open Source) Mental Math

### What is the learning methodology of Mental Math?

Mental Math focuses on practice through timed tests, custom drills, and learning specific mental math tricks. It emphasizes repetition and immediate feedback to build speed and accuracy in arithmetic.

### How does Mental Math track user progress?

Progress tracking includes solved totals, accuracy rates, best performance runs, and daily/longest streaks. A weekly activity view provides an overview of practice engagement.

### Does Mental Math offer certifications?

This application does not offer formal certifications. Its focus is on skill improvement through practice and self-assessment of performance metrics.

### Can I use Mental Math offline?

Yes, all exercises and content within Mental Math run offline. Your progress is saved directly on your device, ensuring accessibility without an internet connection.

### What devices are supported by Mental Math?

Mental Math is supported on iPhones and iPads, making it accessible to a wide range of Apple mobile users.

### Does Mental Math have ads?

No, Mental Math is completely ad-free. The developers have committed to a user experience free from advertisements.

### What is the age rating for Mental Math?

Mental Math has an age rating of 4+, making it suitable for young learners and adults alike who wish to practice arithmetic.

### How often is Mental Math updated?

The application was last updated on July 14, 2026, with version 1.0.0. As an open-source project, updates may occur based on community contributions and developer releases.

## Version history (last 1 release)

### 1.0.0 — 2026-07-14

No release notes.

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All apps by AHMET EMRE DEDELER: https://appshunter.io/developer/1870913629

## Related topics

[mental math](https://appshunter.io/ios/topics/mental-math)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-24.*