# CHU BREST vs RÉACTIF

The clearest difference is update cadence: RÉACTIF at every 8 days against CHU BREST's every 32 months. CHU BREST's advantage is iOS requirement (12.0 vs 16.4). 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.

CHU BREST ships an update every 32 months, RÉACTIF every 8 days. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CHU BREST | RÉACTIF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 8 days** |
| Size | 39 MB | 46 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [VISKALIACC](https://appshunter.io/developer/1031237681) | [steven lagadec](https://appshunter.io/developer/1896615150) |

## What reviewers say

### CHU BREST

[App page](https://appshunter.io/ios/app/chu-brest/id1274967904)

**Features:** macOS Compatibility

**In-app purchases:** none


### RÉACTIF

[App page](https://appshunter.io/ios/app/reactif/id6768908796)

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

**In-app purchases:** none


## Frequently asked questions

### Is CHU BREST free?

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

### Is RÉACTIF free?

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

### Do CHU BREST or RÉACTIF have ads?

Neither CHU BREST nor RÉACTIF shows ads.

### Which is updated more often, CHU BREST or RÉACTIF?

CHU BREST ships an update every 32 months, and RÉACTIF every 8 days. Most recently, CHU BREST was updated on October 7, 2026 and RÉACTIF on October 10, 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.*