# ttmsg vs OfflineHarmony Bluetooth Chat

The clearest difference is update cadence: OfflineHarmony Bluetooth Chat at weekly against ttmsg's every 9 months. ttmsg's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. ttmsg sells 1 one-off in-app purchase and OfflineHarmony Bluetooth Chat sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ttmsg ships an update every 9 months, OfflineHarmony Bluetooth Chat weekly. The most recent releases landed on September 18, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | ttmsg | OfflineHarmony Bluetooth Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/offlineharmony-bluetooth-chat/id6720348771/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | — | Free |
| Size | 15 MB | 23 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Sami Salkosuo](https://appshunter.io/developer/820432278) | [LimeLime Labs LLC](https://appshunter.io/developer/1002915290) |

## What reviewers say

### ttmsg

[App page](https://appshunter.io/ios/app/ttmsg/id1225668824)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


### OfflineHarmony Bluetooth Chat

[App page](https://appshunter.io/ios/app/offlineharmony-bluetooth-chat/id6720348771)

Connect with people nearby using Bluetooth, no internet required. Share text messages, voice notes, and even engage in video calls directly between devices. Ideal for situations with limited or no internet access.

**Highlights:** Offline messaging, Bluetooth video chat, Voice messages, Nearby group chat, Peer-to-peer privacy, Fast setup, Battery efficient

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OfflineHarmony Plus | $1.99 | one-time |


## Frequently asked questions

### Is ttmsg free?

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

### Is OfflineHarmony Bluetooth Chat free?

OfflineHarmony Bluetooth Chat is free to download, with in-app purchases available.

### Do ttmsg or OfflineHarmony Bluetooth Chat have ads?

Neither ttmsg nor OfflineHarmony Bluetooth Chat shows ads.

### Which is updated more often, ttmsg or OfflineHarmony Bluetooth Chat?

ttmsg ships an update every 9 months, and OfflineHarmony Bluetooth Chat weekly. Most recently, ttmsg was updated on September 18, 2026 and OfflineHarmony Bluetooth Chat on September 7, 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.*