# CatBlock vs BlockZen

The clearest difference is device support: CatBlock at 3 against BlockZen's 1. CatBlock also leads on 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.

## The numbers

| Metric | CatBlock | BlockZen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 105 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kouryou cho](https://appshunter.io/developer/1893279296) | [LIANYOU LAN](https://appshunter.io/developer/6782825941) |

## What reviewers say

### CatBlock

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

**In-app purchases:** none


### BlockZen

[App page](https://appshunter.io/ios/app/blockzen/id6782825939)

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

**In-app purchases:** none


## Frequently asked questions

### Is CatBlock free?

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

### Is BlockZen free?

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

### Do CatBlock or BlockZen have ads?

Neither CatBlock nor BlockZen shows ads.

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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.*