# Mental Math vs YUMORIS Kopfrechnen

The clearest difference is iOS requirement: Mental Math at 17.1 against YUMORIS Kopfrechnen's 26.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Mental Math sells 10 in-app purchases, starting at $4.99 per 7 days and YUMORIS Kopfrechnen sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mental Math ships an update every 3 weeks, YUMORIS Kopfrechnen every 10 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Mental Math | YUMORIS Kopfrechnen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/mental-math-mathee/id6502719157/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **17.1** | 26.1 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrey Lebedev](https://appshunter.io/developer/636486462) | [CLAUDIA NICOLETA GRIMM](https://appshunter.io/developer/1836880410) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-mathee/id6502719157)

Enhance your arithmetic abilities with daily math challenges. This app offers over 30 difficulty levels, personalized exercises, and progress tracking to help users of all ages improve their calculation speed and accuracy.

**Highlights:** 30+ difficulty levels, Personalized exercises, Progress tracking, Quick sessions, User-friendly design, Engaging and interactive

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plus | $4.99 | per 7 days |
| Premium Plus | $4.99 | per 7 days |
| Premium Plus | $5.99 | per month |
| Premium Plus | $11.99 | per 3 months |
| Premium Plus | $14.99 | per year |
| Premium Plus | $17.49 | per year |
| Premium Plus | $24.99 | per year |
| Premium Plus | $24.99 | per year |
| Premium Plus | $39.99 | per year |
| Premium Plus | $39.99 | one-time |


### YUMORIS Kopfrechnen

[App page](https://appshunter.io/ios/app/yumoris-kopfrechnen/id6761079072)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kopfrechnen Pro | $0.99 | one-time |


## Frequently asked questions

### Is Mental Math free?

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

### Is YUMORIS Kopfrechnen free?

YUMORIS Kopfrechnen is free to download, with in-app purchases available.

### Do Mental Math or YUMORIS Kopfrechnen have ads?

Neither Mental Math nor YUMORIS Kopfrechnen shows ads.

### Which is updated more often, Mental Math or YUMORIS Kopfrechnen?

Mental Math ships an update every 3 weeks, and YUMORIS Kopfrechnen every 10 days. Most recently, Mental Math was updated on November 4, 2026 and YUMORIS Kopfrechnen on October 31, 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.*