# IMMUNE Messenger vs OK.secure

The clearest difference is monetization model: IMMUNE Messenger at free against OK.secure's free with in-app purchases. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | IMMUNE Messenger | OK.secure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/immune-messenger/id1489335158/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 58.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 88 MB | 113 MB |
| Requires iOS | **15.5** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [IMM Money Messenger Limited](https://appshunter.io/developer/1489335157) | [OK.de Services GmbH](https://appshunter.io/developer/1692149044) |

## What reviewers say

### IMMUNE Messenger

[App page](https://appshunter.io/ios/app/immune-messenger/id1489335158)

This secure messaging app offers end-to-end encrypted chats and calls, with a built-in crypto wallet for easy Bitcoin transfers directly within conversations. It prioritizes user privacy by not storing data on servers, ensuring all communications remain on your device.

**Highlights:** End-to-end encrypted messaging, P2P voice and video calls, Built-in Bitcoin wallet, Direct Bitcoin transfers, Ad-free experience, File and media sharing

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

**In-app purchases:** none


### OK.secure

[App page](https://appshunter.io/ios/app/oksecure/id1518785117)

This app offers private, end-to-end encrypted messaging and a secure crypto wallet. Communicate freely with voice, video calls, and file sharing, all protected by blockchain technology and a zero-knowledge principle. Manage your digital assets with integrated DeFi features.

**Highlights:** End-to-end encrypted messaging, Voice and video calls, File and screen sharing, Non-custodial crypto wallet, DeFi and crypto trading, Blockchain technology

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

**In-app purchases:** none


## Frequently asked questions

### Is IMMUNE Messenger free?

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

### Is OK.secure free?

OK.secure is free to download, with no in-app purchases.

### Do IMMUNE Messenger or OK.secure have ads?

Neither IMMUNE Messenger nor OK.secure shows ads.

### Which is updated more often, IMMUNE Messenger or OK.secure?

IMMUNE Messenger ships an update every 6 weeks, and OK.secure every 6 weeks. Most recently, IMMUNE Messenger was updated on October 24, 2026 and OK.secure on October 29, 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.*