# Seadoku vs Candy Blocks Tangram Blocktuck

The clearest difference is update cadence: Seadoku at fortnightly against Candy Blocks Tangram Blocktuck's every 7 months. On price, ads, 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.

Seadoku ships an update fortnightly, Candy Blocks Tangram Blocktuck every 7 months. The most recent releases landed on October 13, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Seadoku | Candy Blocks Tangram Blocktuck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/seadoku/id1590857274/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | Ad-supported | — |
| Size | 62 MB | 56 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHRISTINA STOUT](https://appshunter.io/developer/1531227744) | [Alexey Romanov](https://appshunter.io/developer/1596744891) |

## 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


### Candy Blocks Tangram Blocktuck

[App page](https://appshunter.io/ios/app/candy-blocks-tangram-blocktuck/id6743008511)

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

**In-app purchases:** none


## Frequently asked questions

### Is Seadoku free?

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

### Is Candy Blocks Tangram Blocktuck free?

Candy Blocks Tangram Blocktuck is free to download, with no in-app purchases.

### Do Seadoku or Candy Blocks Tangram Blocktuck have ads?

Both Seadoku and Candy Blocks Tangram Blocktuck show ads.

### Which is updated more often, Seadoku or Candy Blocks Tangram Blocktuck?

Seadoku ships an update fortnightly, and Candy Blocks Tangram Blocktuck every 7 months. Most recently, Seadoku was updated on October 13, 2026 and Candy Blocks Tangram Blocktuck on October 30, 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.*