# BlockZen vs Cosmo Blocks

The clearest difference is ads: BlockZen at none against Cosmo Blocks's shown. Cosmo Blocks's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price 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 | BlockZen | Cosmo Blocks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 2 MB | 68 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LIANYOU LAN](https://appshunter.io/developer/6782825941) | [POSITIVE VIBRATION, SOCIEDAD LIMITADA.](https://appshunter.io/developer/6787287671) |

## What reviewers say

### BlockZen

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

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

**In-app purchases:** none


### Cosmo Blocks

[App page](https://appshunter.io/ios/app/cosmo-blocks-puzzle-blast/id6787754622)

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

**In-app purchases:** none


## Frequently asked questions

### Is BlockZen free?

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

### Is Cosmo Blocks free?

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

### Do BlockZen or Cosmo Blocks have ads?

Cosmo Blocks shows ads; BlockZen 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.*