# AllChatt vs Post Quantum Secure Chat

The clearest difference is in-app purchases: AllChatt at none against Post Quantum Secure Chat's 2. Post Quantum Secure Chat's advantage is update cadence (every 11 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Post Quantum Secure Chat sells 2 in-app purchases, starting at $4.99 per month. AllChatt asks for nothing beyond the download.

AllChatt ships an update every 4 months, Post Quantum Secure Chat every 11 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AllChatt | Post Quantum Secure Chat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 11 days** |
| Size | 35 MB | 35 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ahmet Durmus](https://appshunter.io/developer/1651208706) | [Zincirx](https://appshunter.io/developer/6816670621) |

## What reviewers say

### AllChatt

[App page](https://appshunter.io/ios/app/allchatt/id6444110956)

**Features:** macOS Compatibility

**In-app purchases:** none


### Post Quantum Secure Chat

[App page](https://appshunter.io/ios/app/post-quantum-secure-chat/id6743000247)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Subscription | $29.99 | per year |


## Frequently asked questions

### Is AllChatt free?

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

### Is Post Quantum Secure Chat free?

Post Quantum Secure Chat is free to download, with in-app purchases available.

### Do AllChatt or Post Quantum Secure Chat have ads?

Neither AllChatt nor Post Quantum Secure Chat shows ads.

### Which is updated more often, AllChatt or Post Quantum Secure Chat?

AllChatt ships an update every 4 months, and Post Quantum Secure Chat every 11 days. Most recently, AllChatt was updated on October 27, 2026 and Post Quantum Secure Chat on October 30, 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.*