# Post Quantum Secure Chat vs SCRT Chat

The clearest difference is ads: Post Quantum Secure Chat at none against SCRT Chat's shown. Post Quantum Secure Chat also leads on iOS requirement (13.0 vs 15.1). On price, update cadence, in-app purchases and device support 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 SCRT Chat sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Post Quantum Secure Chat ships an update every 10 days, SCRT Chat weekly. The most recent releases landed on September 6, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Post Quantum Secure Chat | SCRT Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (4 ratings)](https://appshunter.io/ios/app/scrt-chat-secure-messages/id6744638629/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 53 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAYMATIK BILISIM VE TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1652317997) | [MIU Digital Limited](https://appshunter.io/developer/1691253113) |

## 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 |


### SCRT Chat

[App page](https://appshunter.io/ios/app/scrt-chat-secure-messages/id6744638629)

Create and share custom secret languages for private conversations. Encode and decode messages locally on your device without an internet connection. Perfect for inside jokes and secure communication.

**Highlights:** Create custom secret languages, Generate unique translation keys, Translate text into secret code, Decode messages with friends, Fully private, local processing, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Friend Bundle | $0.99 | one-time |
| 1 Friend Bundle | $1.99 | one-time |
| 3 Friends Bundle | $1.99 | one-time |
| 3 Friends Bundle | $3.99 | one-time |
| 5 Friends Bundle | $3.99 | one-time |
| 10 Friends Bundle | $4.99 | one-time |
| 5 Friends Bundle | $6.99 | one-time |
| 10 Friends Bundle | $9.99 | 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 SCRT Chat free?

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

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

SCRT Chat shows ads; Post Quantum Secure Chat does not.

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

Post Quantum Secure Chat ships an update every 10 days, and SCRT Chat weekly. Most recently, Post Quantum Secure Chat was updated on September 6, 2026 and SCRT Chat on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*