# RGB+ vs Woojong 1

The clearest difference is iOS requirement: RGB+ at 8.0 against Woojong 1's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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

RGB+ ships an update every 11 months, Woojong 1 every 18 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RGB+ | Woojong 1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/rgb-plus/id1289495571/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 18 months |
| Monetization | Free | — |
| Size | 63 MB | 3 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emil Mirzaian](https://appshunter.io/developer/1289495570) | [Woojong Son](https://appshunter.io/developer/1652402139) |

## What reviewers say

### RGB+

[App page](https://appshunter.io/ios/app/rgb-plus/id1289495571)

This puzzle game challenges players to combine primary colors (Red, Green, Blue) to create secondary colors (Cyan, Magenta, Yellow) and eventually White. Utilize familiar sliding block mechanics to clear the grid and achieve high scores.

**Highlights:** Additive RGB color model gameplay, Sliding block puzzle mechanics, Combine primary colors to make secondary, Create white by combining secondary colors, Leaderboard and high score sharing, Minimalist design

**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 RGB+ free?

RGB+ 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 RGB+ or Woojong 1 have ads?

Neither RGB+ nor Woojong 1 shows ads.

### Which is updated more often, RGB+ or Woojong 1?

RGB+ ships an update every 11 months, and Woojong 1 every 18 months. Most recently, RGB+ was updated on October 23, 2026 and Woojong 1 on October 25, 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.*