# zenku vs CatStack!

The clearest difference is in-app purchases: CatStack! at none against zenku's 3. zenku's advantage is iOS requirement (15.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. zenku sells 3 one-off in-app purchases. CatStack! asks for nothing beyond the download.

## The numbers

| Metric | zenku | CatStack! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 106 MB | 42 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [XSGames](https://appshunter.io/developer/1725979641) | [TAKURO INOUE](https://appshunter.io/developer/1806841917) |

## What reviewers say

### zenku

[App page](https://appshunter.io/ios/app/zenku/id6742699851)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All levels | $0.99 | one-time |
| Unlock All levels + Coffee | $2.99 | one-time |
| Unlock All levels + Love | $6.99 | one-time |


### CatStack!

[App page](https://appshunter.io/ios/app/catstack/id6747741193)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is zenku free?

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

### Is CatStack! free?

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

### Do zenku or CatStack! have ads?

Neither zenku nor CatStack! 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.*