# Post Quantum Secure Chat vs Nitro Messenger

The clearest difference is in-app purchases: Nitro Messenger at none against Post Quantum Secure Chat's 2. Nitro Messenger also leads on update cadence (every 2 days vs every 10 days). Post Quantum Secure Chat's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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. Nitro Messenger asks for nothing beyond the download.

Post Quantum Secure Chat ships an update every 10 days, Nitro Messenger every 2 days. The most recent releases landed on September 6, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Post Quantum Secure Chat | Nitro Messenger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Size | 35 MB | 24 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [SAYMATIK BILISIM VE TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1652317997) | [Q Safe Room](https://appshunter.io/developer/6813405619) |

## 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 |


### Nitro Messenger

[App page](https://appshunter.io/ios/app/nitro-messenger/id6781279815)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Post Quantum Secure Chat free?

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

### Is Nitro Messenger free?

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

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

Neither Post Quantum Secure Chat nor Nitro Messenger shows ads.

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

Post Quantum Secure Chat ships an update every 10 days, and Nitro Messenger every 2 days. Most recently, Post Quantum Secure Chat was updated on September 6, 2026 and Nitro Messenger on September 18, 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.*