# Sudoku.MD vs Color Chains

The clearest difference is ads: Sudoku.MD at none against Color Chains's shown. Color Chains's advantage is iOS requirement (11.0 vs 17.0). 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 | Sudoku.MD | Color Chains |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (223 ratings)](https://appshunter.io/ios/app/sudokumd/id284952937/reviews)** | — |
| Number of ratings | **223** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 223 months | — |
| Monetization | Free | — |
| Size | 6 MB | 75 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RightSprite.com](https://appshunter.io/developer/284952940) | [Berat Oguz](https://appshunter.io/developer/1124816969) |

## What reviewers say

### Sudoku.MD

[App page](https://appshunter.io/ios/app/sudokumd/id284952937)

Experience Sudoku with a Japanese aesthetic, offering various difficulty levels and in-game note-taking. Features include multiple undos for beginners, saving multiple games, sharing boards, and community-based solve time rankings. Unlock custom board creation, hints, and highlighted incorrect moves.

**Highlights:** Sliding Fusuma for difficulty selection, In-square note-taking, Multiple undo feature, Save and restore multiple games, Share boards with friends, Community solve time rankings, Custom board creation

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

**In-app purchases:** none


### Color Chains

[App page](https://appshunter.io/ios/app/color-chains/id1663221572)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku.MD free?

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

### Is Color Chains free?

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

### Do Sudoku.MD or Color Chains have ads?

Color Chains shows ads; Sudoku.MD does not.

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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.*