# Flat vs WORB

The clearest difference is ads: WORB at none against Flat's shown. WORB also leads on iOS requirement (13.0 vs 18.0). 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 | Flat | WORB |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Monetization | Ad-supported | — |
| Size | 102 MB | 25 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [masanao matsui](https://appshunter.io/developer/1232130754) | [eiichi kato](https://appshunter.io/developer/1891270642) |

## What reviewers say

### Flat

[App page](https://appshunter.io/ios/app/flat-daily-3d-brain-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


### WORB

[App page](https://appshunter.io/ios/app/worb/id6762632211)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flat free?

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

### Is WORB free?

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

### Do Flat or WORB have ads?

Flat shows ads; WORB does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*