# Tchap Classique vs Rotary 1640

The clearest difference is device support: Tchap Classique at 3 against Rotary 1640's —. Rotary 1640's advantage is iOS requirement (13.0 vs 15.1). On price 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.

## The numbers

| Metric | Tchap Classique | Rotary 1640 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 177 MB | 14 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [DINSIC](https://appshunter.io/developer/1445678805) | [Jean-Paul Gontier](https://appshunter.io/developer/1695957534) |

## What reviewers say

### Tchap Classique

[App page](https://appshunter.io/ios/app/tchap-classique/id1446253779)

A secure instant messaging service for French government agents to exchange sensitive information. It supports one-on-one and group chats, file sharing, and simultaneous use across multiple devices with a focus on privacy.

**Highlights:** Instant messaging, Group chats, File sharing, Integrated directory, Multi-device support, High security and privacy

**Features:** Vision Pro support

**In-app purchases:** none


### Rotary 1640

[App page](https://appshunter.io/ios/app/rotary-1640/id6450964786)

**In-app purchases:** none


## Frequently asked questions

### Is Tchap Classique free?

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

### Is Rotary 1640 free?

Rotary 1640 is free to download, with no in-app purchases.

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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.*