# IPPON vs Concentration Game, 9Bubbles

IPPON and Concentration Game, 9Bubbles both sit at 4.5 stars, but that hides the real split: 75% of IPPON's written reviews are positive against 55% of Concentration Game, 9Bubbles's. Concentration Game, 9Bubbles's advantage is update cadence (every 10 days vs monthly) and iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. IPPON sells 10 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.

On the App Store both sit at effectively the same score — 4.5 for IPPON against 4.5 for Concentration Game, 9Bubbles. Both are backed by a comparable volume of ratings — 76 and 45 respectively. Written reviews are what separate them: 75% of IPPON's written reviews are positive against 55% of Concentration Game, 9Bubbles's.

IPPON ships an update monthly, Concentration Game, 9Bubbles every 10 days. Both last shipped on October 14, 2026.

## The numbers

| Metric | IPPON | Concentration Game, 9Bubbles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (76 ratings)](https://appshunter.io/ios/app/ippon/id1308843468/reviews) | [4.5 (45 ratings)](https://appshunter.io/ios/app/concentration-game-9bubbles/id1366569537/reviews) |
| Number of ratings | **76** | 45 |
| Positive reviews | **75.0% of reviews** | 54.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 43 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IK Software](https://appshunter.io/developer/368549828) | [Lisfee, Inc.](https://appshunter.io/developer/1146331015) |

## What reviewers say

### IPPON

[App page](https://appshunter.io/ios/app/ippon/id1308843468)

Engage your mind with a unique puzzle game featuring over 6,000 stages across 12 diverse modes. Test your concentration and logic with innovative gameplay mechanics designed for brain training and dementia prevention.

**Highlights:** 6,000+ stages, 12 game modes, Brain training and concentration exercises, Multiple scoring and ranking systems, Innovative stroke-based gameplay, Suitable for all ages

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Block LEVEL.3 | $0.99 | one-time |
| Unlock Block LEVEL.4 | $0.99 | one-time |
| Unlock Block LEVEL.5 | $0.99 | one-time |
| Unlock Block LEVEL.6 | $0.99 | one-time |
| Unlock Block LEVEL.7 | $0.99 | one-time |
| Unlock Block LEVEL.8 | $0.99 | one-time |
| Unlock Block LEVEL.9 | $0.99 | one-time |
| Unlock Block LEVEL.10 | $0.99 | one-time |
| Hide ads | $3.99 | one-time |
| Hints indefinitely | $3.99 | 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 IPPON free?

IPPON 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, IPPON or Concentration Game, 9Bubbles?

IPPON and Concentration Game, 9Bubbles are both rated 4.5 out of 5 on the App Store, from 76 and 45 ratings respectively.

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

Both IPPON and Concentration Game, 9Bubbles show ads.

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

IPPON ships an update monthly, and Concentration Game, 9Bubbles every 10 days. Most recently, IPPON was updated on October 14, 2026 and Concentration Game, 9Bubbles on October 14, 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.*