# Aiglon vs Calcul Mental Challenge

The clearest difference is update cadence: Calcul Mental Challenge at every 4 days against Aiglon's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Aiglon ships an update every 2 weeks, Calcul Mental Challenge every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Aiglon | Calcul Mental Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 54 MB | 196 MB |
| Requires iOS | **15.0.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ENSA Vol Libre](https://appshunter.io/developer/1796247159) | [Laurent BOST](https://appshunter.io/developer/1891585206) |

## What reviewers say

### Aiglon

[App page](https://appshunter.io/ios/app/aiglon/id6741928930)

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

**In-app purchases:** none


### Calcul Mental Challenge

[App page](https://appshunter.io/ios/app/calcul-mental-challenge/id6761807166)

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

**In-app purchases:** none


## Frequently asked questions

### Is Aiglon free?

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

### Is Calcul Mental Challenge free?

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

### Do Aiglon or Calcul Mental Challenge have ads?

Neither Aiglon nor Calcul Mental Challenge shows ads.

### Which is updated more often, Aiglon or Calcul Mental Challenge?

Aiglon ships an update every 2 weeks, and Calcul Mental Challenge every 4 days. Most recently, Aiglon was updated on October 28, 2026 and Calcul Mental Challenge 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.*