# Mars Colonizer vs Kitty Brain Blocks

The clearest difference is ads: Kitty Brain Blocks at none against Mars Colonizer's shown. Mars Colonizer's advantage is iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support 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 | Mars Colonizer | Kitty Brain Blocks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 109 MB | 132 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Balzo srl](https://appshunter.io/developer/507881558) | [Dao Quang Kinh](https://appshunter.io/developer/1896775363) |

## What reviewers say

### Mars Colonizer

[App page](https://appshunter.io/ios/app/mars-colonizer/id1635968738)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kitty Brain Blocks

[App page](https://appshunter.io/ios/app/kitty-brain-blocks/id6792197653)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mars Colonizer free?

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

### Is Kitty Brain Blocks free?

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

### Do Mars Colonizer or Kitty Brain Blocks have ads?

Mars Colonizer shows ads; Kitty Brain Blocks 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.*