# Monster Messenger vs ThatCat

The clearest difference is in-app purchases: Monster Messenger at none against ThatCat's 2. Monster Messenger also leads on iOS requirement (9.0 vs 18.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ThatCat sells 2 in-app purchases, starting at $2.99 per month. Monster Messenger asks for nothing beyond the download.

Monster Messenger ships an update every 3 weeks, ThatCat monthly. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Monster Messenger | ThatCat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (703 ratings)](https://appshunter.io/ios/app/monster-messenger/id997402753/reviews)** | — |
| Number of ratings | **703** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 155 MB | 22 MB |
| Requires iOS | **9.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Centres Relier](https://appshunter.io/developer/6774780548) | [DAIKI HAYASHI](https://appshunter.io/developer/1813555074) |

## What reviewers say

### Monster Messenger

[App page](https://appshunter.io/ios/app/monster-messenger/id997402753)

This app provides a secure and engaging platform for children to communicate with friends and family. It allows for sharing photos, voice messages, drawings, and text, all under strict parental control and with a zero-tolerance bullying policy.

**Highlights:** Photo, voice, drawing, and text messaging, Cute sticker library, Photo personalization, Collection pinning and sharing, Full parental control, Reporting and blocking features, Zero-bullying policy

**Features:** macOS Compatibility

**In-app purchases:** none


### ThatCat

[App page](https://appshunter.io/ios/app/thatcat/id6759820455)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cat Club+ (Monthly) | $2.99 | per month |
| Cat Club+ (Annual) | $29.99 | per year |


## Frequently asked questions

### Is Monster Messenger free?

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

### Is ThatCat free?

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

### Do Monster Messenger or ThatCat have ads?

Neither Monster Messenger nor ThatCat shows ads.

### Which is updated more often, Monster Messenger or ThatCat?

Monster Messenger ships an update every 3 weeks, and ThatCat monthly. Most recently, Monster Messenger was updated on October 24, 2026 and ThatCat on October 13, 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.*