# Mental Math vs Calcul Éclair

The clearest difference is iOS requirement: Calcul Éclair at 13.0 against Mental Math's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Mental Math sells 3 in-app purchases, starting at $5.99 per month and Calcul Éclair sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Mental Math | Calcul Éclair |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/mental-math-focus-trainer/id6757860865/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Freemium | — |
| Size | 11 MB | 17 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Denys Kotenko](https://appshunter.io/developer/1869320256) | [Aurelien Roblin](https://appshunter.io/developer/6794072430) |

## 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly: Focus & Mental Math | $5.99 | per month |
| Pro Yearly: Focus & Mental Math | $24.99 | per year |
| Pro Lifetime: Focus & Mental Math | $49.99 | one-time |


### Calcul Éclair

[App page](https://appshunter.io/ios/app/calcul-eclair-calcul-mental/id6795655908)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack Pro — achat unique | $3.99 | one-time |


## Frequently asked questions

### Is Mental Math free?

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

### Is Calcul Éclair free?

Calcul Éclair is free to download, with in-app purchases available.

### Do Mental Math or Calcul Éclair have ads?

Neither Mental Math nor Calcul Éclair shows ads.

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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.*