# Memory Games Concentration vs Concentration Game, 9Bubbles

The clearest difference is review sentiment: Concentration Game, 9Bubbles at 55% against Memory Games Concentration's 0%. Concentration Game, 9Bubbles also leads on rating (4.5 vs 4.0) and update cadence (every 10 days vs every 2 months). Memory Games Concentration's advantage is ads (none vs shown) and iOS requirement (10.0 vs 12.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Memory Games Concentration sells 2 one-off in-app purchases and Concentration Game, 9Bubbles sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Concentration Game, 9Bubbles holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Concentration Game, 9Bubbles has 45 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Memory Games Concentration's written reviews are positive against 55% of Concentration Game, 9Bubbles's.

Memory Games Concentration ships an update every 2 months, Concentration Game, 9Bubbles every 10 days. The most recent releases landed on June 1, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Memory Games Concentration | Concentration Game, 9Bubbles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/memory-games-concentration/id1160875336/reviews) | **[4.5 (45 ratings)](https://appshunter.io/ios/app/concentration-game-9bubbles/id1366569537/reviews)** |
| Number of ratings | 2 | **45** |
| Positive reviews | 0.0% of reviews | **54.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 38 MB | 43 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeremy Burnham](https://appshunter.io/developer/1160565232) | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) |

## What reviewers say

### Memory Games Concentration

[App page](https://appshunter.io/ios/app/memory-games-concentration/id1160875336)

Engage in four distinct mini-games that challenge your memory and concentration. Test your recall with pattern repetition, classic card matching, color word association, and a timed math quiz.

**Highlights:** Sound pattern repetition, Classic card matching, Color word association, Timed math quiz, Addition, subtraction, multiplication, division

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Donate $0.99 to Developer | $0.99 | one-time |


### 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 Memory Games Concentration free?

Memory Games Concentration is free to download, with in-app purchases available.

### Is Concentration Game, 9Bubbles free?

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

### Which has better reviews, Memory Games Concentration or Concentration Game, 9Bubbles?

Concentration Game, 9Bubbles is rated higher. Memory Games Concentration averages 4.0 out of 5 from 2 ratings, while Concentration Game, 9Bubbles averages 4.5 from 45 ratings.

### Do Memory Games Concentration or Concentration Game, 9Bubbles have ads?

Concentration Game, 9Bubbles shows ads; Memory Games Concentration does not.

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

Memory Games Concentration ships an update every 2 months, and Concentration Game, 9Bubbles every 10 days. Most recently, Memory Games Concentration was updated on June 1, 2026 and Concentration Game, 9Bubbles on September 27, 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.*