# うつわBIZEN vs Concentration Game, 9Bubbles

The clearest difference is in-app purchases: うつわBIZEN at none against Concentration Game, 9Bubbles's 4. うつわBIZEN also leads on ads (none vs shown) and iOS requirement (6.0 vs 12.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Concentration Game, 9Bubbles sells 4 one-off in-app purchases. うつわBIZEN asks for nothing beyond the download.

うつわBIZEN ships an update weekly, Concentration Game, 9Bubbles every 10 days. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | うつわBIZEN | Concentration Game, 9Bubbles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (45 ratings)](https://appshunter.io/ios/app/concentration-game-9bubbles/id1366569537/reviews)** |
| Number of ratings | — | **45** |
| Positive reviews | — | 54.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Free with in-app purchases |
| Size | 41 MB | 43 MB |
| Requires iOS | **6.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ARTIFICE](https://appshunter.io/developer/387586445) | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) |

## What reviewers say

### うつわBIZEN

[App page](https://appshunter.io/ios/app/bizen/id866001225)

**Features:** macOS Compatibility

**In-app purchases:** none


### Concentration Game, 9Bubbles

[App page](https://appshunter.io/ios/app/concentration-game-9bubbles/id1366569537)

This game challenges your memory and concentration by requiring you to memorize and recall the colors and positions of bubbles. Designed to improve cognitive skills and creativity, it offers increasing difficulty across 28 stages.

**Highlights:** Memorize colors and positions, Burst bubbles based on memory, Improves memory power, Enhances creative ability, 28 challenging stages, Trains the right side of the brain

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FEEL GOOD | $1.99 | one-time |
| TRY STAGE28 | $1.99 | one-time |
| 10 LIFEs | $1.99 | one-time |
| DELETE ADs | $1.99 | one-time |


## Frequently asked questions

### Is うつわBIZEN free?

うつわBIZEN is free to download, with no in-app purchases.

### Is Concentration Game, 9Bubbles free?

Concentration Game, 9Bubbles is free to download, with in-app purchases available.

### Do うつわBIZEN or Concentration Game, 9Bubbles have ads?

Concentration Game, 9Bubbles shows ads; うつわBIZEN does not.

### Which is updated more often, うつわBIZEN or Concentration Game, 9Bubbles?

うつわBIZEN ships an update weekly, and Concentration Game, 9Bubbles every 10 days. Most recently, うつわBIZEN was updated on September 20, 2026 and Concentration Game, 9Bubbles on September 18, 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.*