# The Caribbean Sudoku vs Fish Evolution Ocean Quest

The clearest difference is in-app purchases: Fish Evolution Ocean Quest at none against The Caribbean Sudoku's 4. Fish Evolution Ocean Quest also leads on ads (none vs shown) and update cadence (every 5 days vs every 10 days). On price and device support there is nothing between them.

Both are free to download. The Caribbean Sudoku sells 3 one-off in-app purchases. Fish Evolution Ocean Quest asks for nothing beyond the download.

The Caribbean Sudoku ships an update every 10 days, Fish Evolution Ocean Quest every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | The Caribbean Sudoku | Fish Evolution Ocean Quest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 128 MB | 244 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Arnaud Paul](https://appshunter.io/developer/1896016828) | [Asad Manzoor](https://appshunter.io/developer/1833964293) |

## What reviewers say

### The Caribbean Sudoku

[App page](https://appshunter.io/ios/app/the-caribbean-sudoku/id6775691950)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Help Credits | $0.99 | one-time |
| 30 Help Credits | $1.99 | one-time |
| Sudoku Premium | $3.99 | one-time |


### Fish Evolution Ocean Quest

[App page](https://appshunter.io/ios/app/fish-evolution-ocean-quest/id6796388769)

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

**In-app purchases:** none


## Frequently asked questions

### Is The Caribbean Sudoku free?

The Caribbean Sudoku is free to download, with in-app purchases available.

### Is Fish Evolution Ocean Quest free?

Fish Evolution Ocean Quest is free to download, with no in-app purchases.

### Do The Caribbean Sudoku or Fish Evolution Ocean Quest have ads?

The Caribbean Sudoku shows ads; Fish Evolution Ocean Quest does not.

### Which is updated more often, The Caribbean Sudoku or Fish Evolution Ocean Quest?

The Caribbean Sudoku ships an update every 10 days, and Fish Evolution Ocean Quest every 5 days. Most recently, The Caribbean Sudoku was updated on October 31, 2026 and Fish Evolution Ocean Quest on October 31, 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.*