# Post Quantum Secure Chat vs LPS Talk

The clearest difference is in-app purchases: LPS Talk at none against Post Quantum Secure Chat's 2. Post Quantum Secure Chat's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads 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. LPS Talk asks for nothing beyond the download.

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

## The numbers

| Metric | Post Quantum Secure Chat | LPS Talk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 35 MB | 58 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAYMATIK BILISIM VE TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1652317997) | [LPS Bilişim A.Ş.](https://appshunter.io/developer/1604783911) |

## 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 |


### LPS Talk

[App page](https://appshunter.io/ios/app/lps-talk/id6746766607)

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

**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 LPS Talk free?

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

### Do Post Quantum Secure Chat or LPS Talk have ads?

Neither Post Quantum Secure Chat nor LPS Talk shows ads.

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

Post Quantum Secure Chat ships an update every 10 days, and LPS Talk fortnightly. Most recently, Post Quantum Secure Chat was updated on September 6, 2026 and LPS Talk 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.*