# Gravity Grid vs Ottomino

The clearest difference is update cadence: Gravity Grid at every 4 days against Ottomino's fortnightly. Ottomino's advantage is iOS requirement (15.0 vs 26.4). On price, ads, 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.

Gravity Grid ships an update every 4 days, Ottomino fortnightly. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Gravity Grid | Ottomino |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 6 MB | 35 MB |
| Requires iOS | 26.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Ali Aleid](https://appshunter.io/developer/1890730349) | [Simone Baldi](https://appshunter.io/developer/6793990491) |

## What reviewers say

### Gravity Grid

[App page](https://appshunter.io/ios/app/gravity-grid-orb-maze/id6764528875)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ottomino

[App page](https://appshunter.io/ios/app/ottomino/id6809583192)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Grid free?

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

### Is Ottomino free?

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

### Do Gravity Grid or Ottomino have ads?

Both Gravity Grid and Ottomino show ads.

### Which is updated more often, Gravity Grid or Ottomino?

Gravity Grid ships an update every 4 days, and Ottomino fortnightly. Most recently, Gravity Grid was updated on October 6, 2026 and Ottomino on October 9, 2026.

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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.*