# CollaChat vs ZERO Messenger

The clearest difference is update cadence: ZERO Messenger at weekly against CollaChat's every 2 months. ZERO Messenger also leads on ratings volume (15 vs 1). CollaChat's advantage is review sentiment (100% vs 78%) and rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CollaChat holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ZERO Messenger has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of CollaChat's written reviews are positive against 78% of ZERO Messenger's.

CollaChat ships an update every 2 months, ZERO Messenger weekly. The most recent releases landed on September 19, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | CollaChat | ZERO Messenger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/collachat/id1546363298/reviews)** | [4.7 (15 ratings)](https://appshunter.io/ios/app/zero-messenger/id6476882926/reviews) |
| Number of ratings | 1 | **15** |
| Positive reviews | **100.0% of reviews** | 77.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 288 MB | 248 MB |
| Requires iOS | **14.0** | 18.5 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CURL TECH PTE. LTD.](https://appshunter.io/developer/1546363300) | [Zero to Infinity, Inc.](https://appshunter.io/developer/1728066651) |

## 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


### ZERO Messenger

[App page](https://appshunter.io/ios/app/zero-messenger/id6476882926)

A secure and private messaging app built on decentralized architecture. It offers end-to-end encryption, Web3 integration, and no ads or surveillance. Reclaim your digital rights with this free, anonymous communication tool.

**Highlights:** Decentralized architecture, End-to-end encryption, Web3 wallet login, Token-gated chats, Cross-device access, No phone number required, Sleek and minimal design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CollaChat free?

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

### Is ZERO Messenger free?

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

### Which has better reviews, CollaChat or ZERO Messenger?

CollaChat is rated higher. CollaChat averages 5.0 out of 5 from 1 ratings, while ZERO Messenger averages 4.7 from 15 ratings.

### Do CollaChat or ZERO Messenger have ads?

Neither CollaChat nor ZERO Messenger shows ads.

### Which is updated more often, CollaChat or ZERO Messenger?

CollaChat ships an update every 2 months, and ZERO Messenger weekly. Most recently, CollaChat was updated on September 19, 2026 and ZERO Messenger on July 8, 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.*