# CollaChat vs 09GSM

The clearest difference is rating: CollaChat at 5.0 against 09GSM's 1.0. CollaChat also leads on in-app purchases (none vs 3) and device support (4 vs 2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 09GSM sells 3 one-off in-app purchases. CollaChat asks for nothing beyond the download.

CollaChat holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CollaChat ships an update every 2 months, 09GSM every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | CollaChat | 09GSM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/collachat/id1546363298/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/09gsm/id6450946884/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 288 MB | 33 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CURL TECH PTE. LTD.](https://appshunter.io/developer/1546363300) | [Aymen Abuajayla](https://appshunter.io/developer/1649146238) |

## What reviewers say

### CollaChat

[App page](https://appshunter.io/ios/app/collachat/id1546363298)

A decentralized, open-source messaging app focused on privacy and data security. It leverages blockchain technology for peer-to-peer communication, offering end-to-end encryption and user control over data storage.

**Highlights:** Decentralized communication network, End-to-end message encryption, Open-source client and server, Multi-device support (Web/Mobile/Desktop), Group chats and calls, Message self-destruction and recall, Contact and chat locking

**In-app purchases:** none


### 09GSM

[App page](https://appshunter.io/ios/app/09gsm/id6450946884)

Make international calls using your data connection. This app connects you to landlines and mobile devices worldwide, leveraging the latest technology for easy and reliable communication.

**Highlights:** VoIP calls worldwide, Uses data connection (2G/3G/4G/WiFi), Connects to landlines and mobiles, Latest communication technologies, Easy to use interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 09GSM Credit-1 | $0.99 | one-time |
| 09GSM Credit-2 | $1.99 | one-time |
| 09GSM Credit-3 | $2.99 | one-time |


## Frequently asked questions

### Is CollaChat free?

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

### Is 09GSM free?

09GSM is free to download, with in-app purchases available.

### Which has better reviews, CollaChat or 09GSM?

CollaChat is rated higher. CollaChat averages 5.0 out of 5 from 1 ratings, while 09GSM averages 1.0 from 1 ratings.

### Do CollaChat or 09GSM have ads?

Neither CollaChat nor 09GSM shows ads.

### Which is updated more often, CollaChat or 09GSM?

CollaChat ships an update every 2 months, and 09GSM every 3 months. Most recently, CollaChat was updated on November 3, 2026 and 09GSM on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*