# CatBlock vs Stackbound

The clearest difference is in-app purchases: CatBlock at none against Stackbound's 1. CatBlock also leads on ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Stackbound sells 1 one-off in-app purchase. CatBlock asks for nothing beyond the download.

## The numbers

| Metric | CatBlock | Stackbound |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 105 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kouryou cho](https://appshunter.io/developer/1893279296) | [Christian Pedersen](https://appshunter.io/developer/1883227582) |

## What reviewers say

### CatBlock

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

**In-app purchases:** none


### Stackbound

[App page](https://appshunter.io/ios/app/stackbound/id6775233980)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackbound Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is CatBlock free?

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

### Is Stackbound free?

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

### Do CatBlock or Stackbound have ads?

Stackbound shows ads; CatBlock does not.

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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.*