# Rainbow Grid vs Woojong 1

The clearest difference is ads: Woojong 1 at none against Rainbow Grid's shown. Rainbow Grid's advantage is update cadence (every 4 months vs every 18 months) and iOS requirement (12.0 vs 15.5). 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.

Rainbow Grid ships an update every 4 months, Woojong 1 every 18 months. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Rainbow Grid | Woojong 1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 18 months |
| Size | 13 MB | 3 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mic Johansson](https://appshunter.io/developer/1333728790) | [Woojong Son](https://appshunter.io/developer/1652402139) |

## What reviewers say

### Rainbow Grid

[App page](https://appshunter.io/ios/app/rainbow-grid-logic-game/id1333728791)

**Features:** macOS Compatibility

**In-app purchases:** none


### Woojong 1

[App page](https://appshunter.io/ios/app/woojong-1/id6461047765)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rainbow Grid free?

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

### Is Woojong 1 free?

Woojong 1 is free to download, with no in-app purchases.

### Do Rainbow Grid or Woojong 1 have ads?

Rainbow Grid shows ads; Woojong 1 does not.

### Which is updated more often, Rainbow Grid or Woojong 1?

Rainbow Grid ships an update every 4 months, and Woojong 1 every 18 months. Most recently, Rainbow Grid was updated on September 18, 2026 and Woojong 1 on September 20, 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.*