# Mental Math vs (Open Source) Mental Math

The clearest difference is rating: Mental Math at 3.5 against (Open Source) Mental Math's 3.0. Mental Math also leads on update cadence (weekly vs every 2 months). (Open Source) Mental Math's advantage is in-app purchases (none vs 2) and iOS requirement (16.4 vs 18.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Mental Math sells 2 in-app purchases, starting at $3.99 per month. (Open Source) Mental Math asks for nothing beyond the download.

Mental Math holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Mental Math ships an update weekly, (Open Source) Mental Math every 2 months. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Mental Math | (Open Source) Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/mental-math-focus-trainer/id6757860865/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/open-source-mental-math/id6788418444/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 11 MB | 40 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Denys Kotenko](https://appshunter.io/developer/1869320256) | [AHMET EMRE DEDELER](https://appshunter.io/developer/1870913629) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-focus-trainer/id6757860865)

Enhance concentration and mental speed with daily mental math exercises. This app offers a minimalist approach to brain training, helping you prepare for deep work, studying, or important meetings. Track your progress and customize sessions to improve focus and cognitive clarity.

**Highlights:** Performance testing, Mental math training (add, subtract, multiply, divide), Customizable exercises, Progress tracking, Minimalist design, Focus improvement

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly: Focus & Mental Math | $3.99 | per month |
| Pro Yearly: Focus & Mental Math | $17.99 | per year |


### (Open Source) Mental Math

[App page](https://appshunter.io/ios/app/open-source-mental-math/id6788418444)

This application offers a free, open-source platform for practicing mental arithmetic. It features timed tests, custom drills, and a comprehensive library of mental math tricks. All content is available offline without ads or paywalls.

**Highlights:** Timed arithmetic tests, Customizable drills, Mental math tricks library, Offline progress tracking, Multiple operation types, Fast session interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mental Math free?

Mental Math is free to download, with in-app purchases available.

### Is (Open Source) Mental Math free?

(Open Source) Mental Math is free to download, with no in-app purchases.

### Which has better reviews, Mental Math or (Open Source) Mental Math?

Mental Math is rated higher. Mental Math averages 3.5 out of 5 from 4 ratings, while (Open Source) Mental Math averages 3.0 from 2 ratings.

### Do Mental Math or (Open Source) Mental Math have ads?

Neither Mental Math nor (Open Source) Mental Math shows ads.

### Which is updated more often, Mental Math or (Open Source) Mental Math?

Mental Math ships an update weekly, and (Open Source) Mental Math every 2 months. Most recently, Mental Math was updated on September 23, 2026 and (Open Source) Mental Math on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*