# Doku! Block Puzzle Game vs 3D bubbles

The clearest difference is in-app purchases: 3D bubbles at none against Doku! Block Puzzle Game's 6. 3D bubbles also leads on rating (5.0 vs 4.6). Doku! Block Puzzle Game's advantage is ratings volume (46 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Doku! Block Puzzle Game sells 6 in-app purchases, starting at $0.99 per 7 days. 3D bubbles asks for nothing beyond the download.

3D bubbles holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Doku! Block Puzzle Game has 46 ratings behind it against 1, so its average is the more settled of the two.

Doku! Block Puzzle Game ships an update every 2 weeks, 3D bubbles weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Doku! Block Puzzle Game | 3D bubbles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (46 ratings)](https://appshunter.io/ios/app/doku-block-puzzle-game/id6447484089/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/3d-bubbles/id6479545090/reviews)** |
| Number of ratings | **46** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 226 MB | 117 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Sparks Games](https://appshunter.io/developer/1742010089) | [KometGames PTE.LTD.](https://appshunter.io/developer/1505582223) |

## What reviewers say

### Doku! Block Puzzle Game

[App page](https://appshunter.io/ios/app/doku-block-puzzle-game/id6447484089)

This game blends block puzzle mechanics with Sudoku's numerical challenges. Place blocks to fill rows and columns, requiring strategic planning and logical thinking. It offers increasing difficulty, daily challenges, and a clean interface for a satisfying puzzle experience.

**Highlights:** Block placement on a grid, Sudoku-inspired row/column logic, Increasing difficulty levels, Daily challenges, High score tracking, Clean and intuitive interface

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Week no Ads | $0.99 | per 7 days |
| No Ads - 90% discount | $1.99 | per month |
| No Ads - charge monthly | $2.99 | per month |
| No Ads  half-year | $7.99 | per 6 months |
| No Ads entire year | $12.99 | per year |
| No Ads | $4.99 | one-time |


### 3D bubbles

[App page](https://appshunter.io/ios/app/3d-bubbles/id6479545090)

Experience a modern twist on the classic bubble shooter with stunning 3D graphics. Match colorful spheres, solve challenging puzzles, and use power-ups to achieve high scores in this addictive game.

**Highlights:** Addictive 3D bubble matching gameplay, Challenging puzzle levels, Visually stunning 3D environment, Power-ups and boosters, Relaxing soundtrack

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Doku! Block Puzzle Game free?

Doku! Block Puzzle Game is free to download, with in-app purchases available.

### Is 3D bubbles free?

3D bubbles is free to download, with no in-app purchases.

### Which has better reviews, Doku! Block Puzzle Game or 3D bubbles?

3D bubbles is rated higher. Doku! Block Puzzle Game averages 4.6 out of 5 from 46 ratings, while 3D bubbles averages 5.0 from 1 ratings.

### Do Doku! Block Puzzle Game or 3D bubbles have ads?

Both Doku! Block Puzzle Game and 3D bubbles show ads.

### Which is updated more often, Doku! Block Puzzle Game or 3D bubbles?

Doku! Block Puzzle Game ships an update every 2 weeks, and 3D bubbles weekly. Most recently, Doku! Block Puzzle Game was updated on November 3, 2026 and 3D bubbles on November 4, 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.*