# Seadoku vs Eco Mi

The clearest difference is rating: Seadoku at 5.0 against Eco Mi's 4.5. Seadoku also leads on in-app purchases (none vs 7). Eco Mi's advantage is iOS requirement (15.1 vs 18.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Eco Mi sells 7 one-off in-app purchases. Seadoku asks for nothing beyond the download.

Seadoku holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

Seadoku ships an update fortnightly, Eco Mi every 9 days. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Seadoku | Eco Mi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/seadoku/id1590857274/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/eco-mi-memory-game/id6761642110/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 62 MB | 63 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHRISTINA STOUT](https://appshunter.io/developer/1531227744) | [Frank Calise](https://appshunter.io/developer/1676853052) |

## What reviewers say

### Seadoku

[App page](https://appshunter.io/ios/app/seadoku/id1590857274)

This game offers a unique twist on Sudoku, replacing numbers with charming sea creatures. Enjoy a relaxing underwater world with strategic puzzles and multiple difficulty levels. It's perfect for honing your puzzle-solving skills.

**Highlights:** Sea creature themed puzzles, Multiple difficulty levels, Relaxing ocean soundscapes, Strategic gameplay, Hone puzzle-solving skills

**Features:** macOS Compatibility

**In-app purchases:** none


### Eco Mi

[App page](https://appshunter.io/ios/app/eco-mi-memory-game/id6761642110)

Test your memory by watching and repeating color sequences. Features five unique game modes, including classic, timed, and reverse challenges. Compete on leaderboards, unlock achievements, and track your progress with a stats dashboard.

**Highlights:** Five distinct game modes, High score leaderboard, 16 unlockable achievements, Progress tracking dashboard, Customizable color themes and sound packs, Haptic feedback

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retro Theme | $0.99 | one-time |
| Neon Theme | $0.99 | one-time |
| Pastel Theme | $0.99 | one-time |
| Retro Sound Pack | $0.99 | one-time |
| Buzzy Sound Pack | $0.99 | one-time |
| Mellow Sound Pack | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Seadoku free?

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

### Is Eco Mi free?

Eco Mi is free to download, with in-app purchases available.

### Which has better reviews, Seadoku or Eco Mi?

Seadoku is rated higher. Seadoku averages 5.0 out of 5 from 5 ratings, while Eco Mi averages 4.5 from 2 ratings.

### Do Seadoku or Eco Mi have ads?

Both Seadoku and Eco Mi show ads.

### Which is updated more often, Seadoku or Eco Mi?

Seadoku ships an update fortnightly, and Eco Mi every 9 days. Most recently, Seadoku was updated on October 13, 2026 and Eco Mi 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.*