# Concentration Game, 9Bubbles vs あいうえ王：早押し脳トレパズルゲーム

The clearest difference is in-app purchases: あいうえ王：早押し脳トレパズルゲーム at none against Concentration Game, 9Bubbles's 4. あいうえ王：早押し脳トレパズルゲーム also leads on update cadence (daily vs every 10 days). Concentration Game, 9Bubbles's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.6). On price and ads there is nothing between them.

Both are free to download. Concentration Game, 9Bubbles sells 4 one-off in-app purchases. あいうえ王：早押し脳トレパズルゲーム asks for nothing beyond the download.

Concentration Game, 9Bubbles ships an update every 10 days, あいうえ王：早押し脳トレパズルゲーム daily. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Concentration Game, 9Bubbles | あいうえ王：早押し脳トレパズルゲーム |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (46 ratings)](https://appshunter.io/ios/app/concentration-game-9bubbles/id1366569537/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 17 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) | [itsuki hotta](https://appshunter.io/developer/1850269346) |

## What reviewers say

### 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 |


### あいうえ王：早押し脳トレパズルゲーム

[App page](https://appshunter.io/ios/app/id6757008251)

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

**In-app purchases:** none


## Frequently asked questions

### Is Concentration Game, 9Bubbles free?

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

### Is あいうえ王：早押し脳トレパズルゲーム free?

あいうえ王：早押し脳トレパズルゲーム is free to download, with no in-app purchases.

### Do Concentration Game, 9Bubbles or あいうえ王：早押し脳トレパズルゲーム have ads?

Both Concentration Game, 9Bubbles and あいうえ王：早押し脳トレパズルゲーム show ads.

### Which is updated more often, Concentration Game, 9Bubbles or あいうえ王：早押し脳トレパズルゲーム?

Concentration Game, 9Bubbles ships an update every 10 days, and あいうえ王：早押し脳トレパズルゲーム daily. Most recently, Concentration Game, 9Bubbles was updated on November 2, 2026 and あいうえ王：早押し脳トレパズルゲーム on November 5, 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.*