# [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム vs Concentration Game, 9Bubbles

The clearest difference is in-app purchases: [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム at none against Concentration Game, 9Bubbles's 4. [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム also leads on ads (none vs shown) and iOS requirement (6.0 vs 12.0). Concentration Game, 9Bubbles's advantage is update cadence (every 10 days vs every 13 months). On price and device support there is nothing between them.

Both are free to download. Concentration Game, 9Bubbles sells 4 one-off in-app purchases. [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム asks for nothing beyond the download.

[大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム ships an update every 13 months, Concentration Game, 9Bubbles every 10 days. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム | Concentration Game, 9Bubbles |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 43 MB |
| Requires iOS | **6.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [REP COM Inc.](https://appshunter.io/developer/702707146) | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) |

## What reviewers say

### [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム

[App page](https://appshunter.io/ios/app/id884686986)

**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 [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム free?

[大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム 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 [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム or Concentration Game, 9Bubbles have ads?

Concentration Game, 9Bubbles shows ads; [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム does not.

### Which is updated more often, [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム or Concentration Game, 9Bubbles?

[大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム ships an update every 13 months, and Concentration Game, 9Bubbles every 10 days. Most recently, [大人の脳トレ] 判断力をあげろ！無料で暇つぶしが出来るゲーム was updated on October 26, 2026 and Concentration Game, 9Bubbles on October 22, 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.*