# CGT Perrier vs FO RTM

The clearest difference is iOS requirement: CGT Perrier at 15.0 against FO RTM's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 13 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CGT Perrier | FO RTM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | Every 13 months |
| Size | 49 MB | 50 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [UNION CGT](https://appshunter.io/developer/1739808466) | [SYNDICAT FO COMMUNICATION ORANGE FRANCE](https://appshunter.io/developer/1690809661) |

## What reviewers say

### CGT Perrier

[App page](https://appshunter.io/ios/app/cgt-perrier/id6670782425)

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

**In-app purchases:** none


### FO RTM

[App page](https://appshunter.io/ios/app/fo-rtm/id6726997830)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CGT Perrier free?

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

### Is FO RTM free?

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

### Do CGT Perrier or FO RTM have ads?

Both CGT Perrier and FO RTM show ads.

### Which is updated more often, CGT Perrier or FO RTM?

CGT Perrier ships an update every 13 months, and FO RTM every 13 months. Most recently, CGT Perrier was updated on October 25, 2026 and FO RTM on October 24, 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.*