# ClearTheBubbles vs Concentration

The clearest difference is price: ClearTheBubbles at Free against Concentration's $0.99. Concentration's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, ratings volume, device support and iOS requirement there is nothing between them.

ClearTheBubbles is free to download; Concentration costs $0.99 up front. ClearTheBubbles sells 1 one-off in-app purchase. Concentration asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for ClearTheBubbles against 4.0 for Concentration. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ClearTheBubbles ships an update every 55 months, Concentration every 8 days. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ClearTheBubbles | Concentration |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/clearthebubbles/id522415805/reviews) | [4.0 (1 ratings)](https://appshunter.io/ios/app/concentration-card-game/id1462017368/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 55 months | **Every 8 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 4 MB | 2 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NINTHBOAT INC.](https://appshunter.io/developer/522415808) | [Ankit Shah](https://appshunter.io/developer/1462017367) |

## What reviewers say

### ClearTheBubbles

[App page](https://appshunter.io/ios/app/clearthebubbles/id522415805)

A casual game where players tap groups of same-colored bubbles to clear them. The goal is to strategically connect and organize bubbles for higher scores. It offers an engaging and simple puzzle experience.

**Highlights:** Tap to clear same-colored bubbles, Organize and connect bubbles, Achieve higher scores, Easy and fun gameplay, Casual puzzle experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $0.99 | one-time |


### Concentration

[App page](https://appshunter.io/ios/app/concentration-card-game/id1462017368)

A classic memory matching card game where players flip cards to find pairs. It's suitable for all ages, offering a fun challenge for both children and adults to test their recall.

**Highlights:** Card matching gameplay, Memory testing, Solitaire or multiplayer, Challenging for adults, Good for children

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ClearTheBubbles free?

ClearTheBubbles is free to download, with in-app purchases available.

### Is Concentration free?

Concentration costs $0.99, with no in-app purchases.

### Which has better reviews, ClearTheBubbles or Concentration?

ClearTheBubbles and Concentration are both rated 4.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ClearTheBubbles or Concentration have ads?

ClearTheBubbles shows ads; Concentration does not.

### Which is updated more often, ClearTheBubbles or Concentration?

ClearTheBubbles ships an update every 55 months, and Concentration every 8 days. Most recently, ClearTheBubbles was updated on October 12, 2026 and Concentration on September 30, 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.*