# Block AI vs CatBlock

The clearest difference is update cadence: Block AI at every 2 days against CatBlock's every 3 weeks. CatBlock's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.

Block AI ships an update every 2 days, CatBlock every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Block AI | CatBlock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 28 MB | 105 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BOOMALAYA](https://appshunter.io/developer/371321319) | [kouryou cho](https://appshunter.io/developer/1893279296) |

## What reviewers say

### Block AI

[App page](https://appshunter.io/ios/app/block-ai/id6761308539)

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

**In-app purchases:** none


### CatBlock

[App page](https://appshunter.io/ios/app/catblock/id6762186550)

**In-app purchases:** none


## Frequently asked questions

### Is Block AI free?

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

### Is CatBlock free?

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

### Do Block AI or CatBlock have ads?

Neither Block AI nor CatBlock shows ads.

### Which is updated more often, Block AI or CatBlock?

Block AI ships an update every 2 days, and CatBlock every 3 weeks. Most recently, Block AI was updated on October 25, 2026 and CatBlock 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.*