# Tchap vs LurkMap

The clearest difference is in-app purchases: Tchap at none against LurkMap's 2. LurkMap's advantage is iOS requirement (15.1 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. LurkMap sells 2 in-app purchases, starting at $3.99 per month. Tchap asks for nothing beyond the download.

Tchap ships an update every 3 weeks, LurkMap fortnightly. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Tchap | LurkMap |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 51.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 367 MB | 47 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [DINSIC](https://appshunter.io/developer/1445678805) | [Build Your Web](https://appshunter.io/developer/6787104366) |

## What reviewers say

### Tchap

[App page](https://appshunter.io/ios/app/tchap/id6736991029)

This secure messaging app is the official instant messenger for French public agents. It offers enhanced performance, individual and group chats, audio/video calls, file sharing, and cross-device synchronization for professional communication.

**Highlights:** Individual and group messaging, Audio and video calls, File and document sharing, Agent directory access, Cross-device synchronization, External contact invitations

**Features:** macOS Compatibility

**In-app purchases:** none


### LurkMap

[App page](https://appshunter.io/ios/app/lurkmap/id6787105988)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LurkMap Premium Monthly | $3.99 | per month |
| LurkMap Premium Annual | $44.90 | per year |


## Frequently asked questions

### Is Tchap free?

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

### Is LurkMap free?

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

### Do Tchap or LurkMap have ads?

Neither Tchap nor LurkMap shows ads.

### Which is updated more often, Tchap or LurkMap?

Tchap ships an update every 3 weeks, and LurkMap fortnightly. Most recently, Tchap was updated on November 12, 2026 and LurkMap on November 13, 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.*