# Mental Calculation vs Défi Calcul

The clearest difference is device support: Mental Calculation at 3 against Défi Calcul's —. On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mental Calculation ships an update every 25 months, Défi Calcul every 40 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mental Calculation | Défi Calcul |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 25 months** | Every 40 months |
| Monetization | Free | — |
| Size | 7 MB | 13 MB |
| Requires iOS | **11.4** | 12.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Bronner](https://appshunter.io/developer/291929818) | [Alexis Younes](https://appshunter.io/developer/1178590082) |

## What reviewers say

### Mental Calculation

[App page](https://appshunter.io/ios/app/mental-calculation/id765124023)

This game helps you practice mental arithmetic skills throughout the year. It offers a fun and engaging way to improve your math abilities.

**Highlights:** Mental arithmetic practice, Year-round learning, Engaging gameplay, Improves math skills

**Features:** macOS Compatibility

**In-app purchases:** none


### Défi Calcul

[App page](https://appshunter.io/ios/app/defi-calcul/id1441532784)

**In-app purchases:** none


## Frequently asked questions

### Is Mental Calculation free?

Mental Calculation is free to download, with no in-app purchases.

### Is Défi Calcul free?

Défi Calcul is free to download, with no in-app purchases.

### Which is updated more often, Mental Calculation or Défi Calcul?

Mental Calculation ships an update every 25 months, and Défi Calcul every 40 months. Most recently, Mental Calculation was updated on October 7, 2026 and Défi Calcul on October 25, 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.*