# Who is bad? vs CatBlock

The clearest difference is in-app purchases: CatBlock at none against Who is bad?'s 2. CatBlock also leads on ads (none vs shown). Who is bad?'s advantage is update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Who is bad? sells 2 in-app purchases, starting at $5.99 per 7 days. CatBlock asks for nothing beyond the download.

Who is bad? ships an update weekly, CatBlock every 3 weeks. Both last shipped on November 9, 2026.

## The numbers

| Metric | Who is bad? | CatBlock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 118 MB | 105 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stringmoon Technology Co., Ltd](https://appshunter.io/developer/1876904381) | [kouryou cho](https://appshunter.io/developer/1893279296) |

## What reviewers say

### Who is bad?

[App page](https://appshunter.io/ios/app/who-is-bad/id6759103785)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Cases Daily! | $5.99 | per 7 days |
| More Cases! | $0.99 | one-time |


### CatBlock

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

**In-app purchases:** none


## Frequently asked questions

### Is Who is bad? free?

Who is bad? is free to download, with in-app purchases available.

### Is CatBlock free?

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

### Do Who is bad? or CatBlock have ads?

Who is bad? shows ads; CatBlock does not.

### Which is updated more often, Who is bad? or CatBlock?

Who is bad? ships an update weekly, and CatBlock every 3 weeks. Most recently, Who is bad? was updated on November 9, 2026 and CatBlock on November 9, 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.*