# Cross Messenger vs Post Quantum Secure Chat

The clearest difference is in-app purchases: Cross Messenger at none against Post Quantum Secure Chat's 2. Post Quantum Secure Chat's advantage is update cadence (every 10 days vs every 22 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. Cross Messenger asks for nothing beyond the download.

Cross Messenger ships an update every 22 months, Post Quantum Secure Chat every 10 days. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Cross Messenger | Post Quantum Secure Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/cross-messenger/id1498791933/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 9 MB | 35 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IPTP Ltd](https://appshunter.io/developer/1498791932) | [SAYMATIK BILISIM VE TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1652317997) |

## What reviewers say

### Cross Messenger

[App page](https://appshunter.io/ios/app/cross-messenger/id1498791933)

Connect with friends, family, and colleagues through secure instant messaging. Share texts, multimedia, and make calls or video conferences. Offers a simple, stable, and safe communication experience across multiple devices and platforms.

**Highlights:** Instant text messaging, Multimedia file sharing, Group chat creation, Voice and video calls, Video conferencing with screen sharing, Cross-platform availability

**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 Cross Messenger free?

Cross Messenger 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 Cross Messenger or Post Quantum Secure Chat have ads?

Neither Cross Messenger nor Post Quantum Secure Chat shows ads.

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

Cross Messenger ships an update every 22 months, and Post Quantum Secure Chat every 10 days. Most recently, Cross Messenger was updated on October 10, 2026 and Post Quantum Secure Chat on October 4, 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.*