# ChatCat vs Modem AI

The clearest difference is device support: Modem AI at 4 against ChatCat's 2. Modem AI also leads on iOS requirement (15.0 vs 18.0). 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.

ChatCat ships an update every 11 months, Modem AI every 7 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ChatCat | Modem AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 7 months** |
| Size | 11 MB | 42 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [茵 吕](https://appshunter.io/developer/1337000923) | [Joe Mayo](https://appshunter.io/developer/1875822515) |

## What reviewers say

### ChatCat

[App page](https://appshunter.io/ios/app/chatcat-ai-chatbot/id6742164947)

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

**In-app purchases:** none


### Modem AI

[App page](https://appshunter.io/ios/app/modem-ai/id6758928585)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChatCat free?

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

### Is Modem AI free?

Modem AI is free to download, with no in-app purchases.

### Do ChatCat or Modem AI have ads?

Neither ChatCat nor Modem AI shows ads.

### Which is updated more often, ChatCat or Modem AI?

ChatCat ships an update every 11 months, and Modem AI every 7 months. Most recently, ChatCat was updated on October 28, 2026 and Modem AI on October 25, 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.*