# Post Quantum Secure Chat vs Kiba Chat Messenger

The clearest difference is iOS requirement: Post Quantum Secure Chat at 13.0 against Kiba Chat Messenger's 16.4. On price, update cadence, ads and in-app purchases 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 and Kiba Chat Messenger sells 7 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Post Quantum Secure Chat ships an update every 10 days, Kiba Chat Messenger every 5 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Post Quantum Secure Chat | Kiba Chat Messenger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 35 MB | 114 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [SAYMATIK BILISIM VE TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1652317997) | [Maksim Domkov](https://appshunter.io/developer/1893556850) |

## What reviewers say

### 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 |


### Kiba Chat Messenger

[App page](https://appshunter.io/ios/app/kiba-chat-messenger/id6762253729)

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mia Pro | $12.99 | per month |
| Mia Business | $34.99 | per month |
| Mia Pro Yearly | $129.99 | per year |
| Mia Business | $349.99 | per year |
| 100 Stars | $0.99 | one-time |
| 500 Stars | $3.99 | one-time |
| 1000 Stars | $6.99 | one-time |


## Frequently asked questions

### Is Post Quantum Secure Chat free?

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

### Is Kiba Chat Messenger free?

Kiba Chat Messenger is free to download, with in-app purchases available.

### Do Post Quantum Secure Chat or Kiba Chat Messenger have ads?

Neither Post Quantum Secure Chat nor Kiba Chat Messenger shows ads.

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

Post Quantum Secure Chat ships an update every 10 days, and Kiba Chat Messenger every 5 days. Most recently, Post Quantum Secure Chat was updated on October 21, 2026 and Kiba Chat Messenger on October 25, 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.*