# Flat vs Zero Grid

The clearest difference is in-app purchases: Flat at none against Zero Grid's 1. Zero Grid's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. Zero Grid sells 1 one-off in-app purchase. Flat asks for nothing beyond the download.

## The numbers

| Metric | Flat | Zero Grid |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Ad-supported | — |
| Size | 113 MB | 141 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [masanao matsui](https://appshunter.io/developer/1232130754) | [Yuki Tsuna](https://appshunter.io/developer/1868553519) |

## 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


### Zero Grid

[App page](https://appshunter.io/ios/app/zero-grid/id6760925027)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Flat free?

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

### Is Zero Grid free?

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

### Do Flat or Zero Grid have ads?

Both Flat and Zero Grid show 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.*