# Concentration Game, 9Bubbles vs MemoryBrainMash

The clearest difference is in-app purchases: MemoryBrainMash at none against Concentration Game, 9Bubbles's 4. MemoryBrainMash also leads on ads (none vs shown). Concentration Game, 9Bubbles's advantage is update cadence (every 10 days vs every 17 months) and iOS requirement (12.0 vs 15.6). 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. MemoryBrainMash asks for nothing beyond the download.

Concentration Game, 9Bubbles ships an update every 10 days, MemoryBrainMash every 17 months. The most recent releases landed on September 27, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Concentration Game, 9Bubbles | MemoryBrainMash |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 17 months |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 13 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) | [Fabio Augusto De Carvalho](https://appshunter.io/developer/1709554594) |

## 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 |


### MemoryBrainMash

[App page](https://appshunter.io/ios/app/memorybrainmash/id6470736388)

**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 MemoryBrainMash free?

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

### Do Concentration Game, 9Bubbles or MemoryBrainMash have ads?

Concentration Game, 9Bubbles shows ads; MemoryBrainMash does not.

### Which is updated more often, Concentration Game, 9Bubbles or MemoryBrainMash?

Concentration Game, 9Bubbles ships an update every 10 days, and MemoryBrainMash every 17 months. Most recently, Concentration Game, 9Bubbles was updated on September 27, 2026 and MemoryBrainMash on September 12, 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.*