# Flat vs CritterBlock

Flat and CritterBlock are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Flat | CritterBlock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Ad-supported | — |
| Size | 113 MB | 19 MB |
| Requires iOS | 18.0 | **17.2** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [masanao matsui](https://appshunter.io/developer/1232130754) | [mizuto segawa](https://appshunter.io/developer/1764904284) |

## What reviewers say

### Flat

[App page](https://appshunter.io/ios/app/flat-3d-puzzle/id1609852968)

A minimalist 3D puzzle game where players move cubes into black holes to flatten the board. It offers 50 stages with increasing complexity and intuitive swipe controls for an immersive experience.

**Highlights:** 3D puzzle gameplay, Minimalist design, 50 challenging stages, Intuitive swipe controls, Progressive mechanics

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

**In-app purchases:** none


### CritterBlock

[App page](https://appshunter.io/ios/app/critterblock/id6667110511)

**In-app purchases:** none


## Frequently asked questions

### Is Flat free?

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

### Is CritterBlock free?

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

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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.*