# IMMUNE Messenger vs prefGrab™

The clearest difference is in-app purchases: IMMUNE Messenger at none against prefGrab™'s 2. IMMUNE Messenger also leads on ads (none vs shown). prefGrab™'s advantage is update cadence (fortnightly vs every 6 weeks) and ratings volume (7 vs 1). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. prefGrab™ sells 2 in-app purchases, starting at $0.99 per month. IMMUNE Messenger asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for IMMUNE Messenger against 5.0 for prefGrab™. That said, the two scores are not equally well evidenced: prefGrab™ has 7 ratings behind it against 1, so its average is the more settled of the two.

IMMUNE Messenger ships an update every 6 weeks, prefGrab™ fortnightly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | IMMUNE Messenger | prefGrab™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/immune-messenger/id1489335158/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/prefgrab/id1596865461/reviews) |
| Number of ratings | 1 | **7** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 88 MB | 48 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [IMM Money Messenger Limited](https://appshunter.io/developer/1489335157) | [PREFGRAB, INC.](https://appshunter.io/developer/1596865463) |

## 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


### prefGrab™

[App page](https://appshunter.io/ios/app/prefgrab/id1596865461)

This social app helps you discover and share preferences for various items, from food and drinks to gift ideas. Easily find out what friends and family like to make informed decisions when hosting or buying gifts. Share your own preferences to help others.

**Highlights:** Create user profiles, Search other users' preferences, Share preferences for food, drinks, and gifts, Add photos and URLs to preferences, Access 'grabBag' for gift ideas and custom categories (subscription), Control who sees your preferences

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $9.99 | per year |


## Frequently asked questions

### Is IMMUNE Messenger free?

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

### Is prefGrab™ free?

prefGrab™ is free to download, with in-app purchases available.

### Which has better reviews, IMMUNE Messenger or prefGrab™?

IMMUNE Messenger and prefGrab™ are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.

### Do IMMUNE Messenger or prefGrab™ have ads?

prefGrab™ shows ads; IMMUNE Messenger does not.

### Which is updated more often, IMMUNE Messenger or prefGrab™?

IMMUNE Messenger ships an update every 6 weeks, and prefGrab™ fortnightly. Most recently, IMMUNE Messenger was updated on October 24, 2026 and prefGrab™ on October 23, 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.*