Concentration Game, 9Bubbles vs 脳トレの学校
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Concentration Game, 9Bubbles
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.
- 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
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This game will make you smarter and relieve your stress. It is easy at the beginning, but gets more and more difficult. Theoretically, only 1 player per 10,000 can beat all the stages. Let's try! ◆Game Rule◆ Rules are very simple. Memorize the "colors" and "positions" of bubbles which are displayed for only 3 seconds. After they disappear, use your memory, select bubbles and burst them. ◆Game Feature◆ Continue playing this game and you will see that your power of memory improves. The game does more than just improve your memory. Seeing colors is mainly handled by the right side of your brain which is said to control your creativity and intuition. Just by playing this game, you will be able to improve your creative ability. The game has 28 stages in total. If you beat all the stages, the right side of your brain will be able to handle more information than ever! There are many games which train the left side of the brain including Sudoku and other number puzzles, but there are not many games in the world which train the right side of the brain. Play this game, train the right side of your brain and make your everyday life full of creativity!
脳トレの学校
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◆キンコンカンコン〜！脳トレの学校はっじまるよー！ シンプルなゲームであなたの脳年齢を診断します。 ゲームのルールはとっても簡単！ お題にあった数字を見つけてタップするだけ！ 遊べば遊ぶほど脳が活性化されます。 あなたの脳は何歳ですか？？
Screenshots
Verdict
The clearest difference is review sentiment: Concentration Game, 9Bubbles at 55% against 脳トレの学校's 0%. Concentration Game, 9Bubbles also leads on rating (4.4 vs 4.0) and update cadence (every 10 days vs every 6 weeks). 脳トレの学校's advantage is in-app purchases (none vs 4). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Concentration Game, 9Bubbles sells 4 one-off in-app purchases. 脳トレの学校 asks for nothing beyond the download.
Concentration Game, 9Bubbles holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Concentration Game, 9Bubbles has 46 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 55% of Concentration Game, 9Bubbles's written reviews are positive against 0% of 脳トレの学校's.
Concentration Game, 9Bubbles ships an update every 10 days, 脳トレの学校 every 6 weeks. The most recent releases landed on October 22, 2026 and October 19, 2026 respectively.
| Parameter | Concentration Game, 9Bubbles | 脳トレの学校 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (46 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 54.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 46 — better | 1 |
| Update frequency | Every 10 days — better | Every 6 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 129 MB |
| Age rating | 4+ | 4+ |
| Developer | Lisfee, Inc. | ZERONE |
Customer experience
Concentration Game, 9Bubbles
脳トレの学校
In-app purchases
Concentration Game, 9Bubbles
- FEEL GOOD$1.99
- TRY STAGE28$1.99
- 10 LIFEs$1.99
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- DELETE ADs$1.99
脳トレの学校
No in-app purchases
Questions
Is Concentration Game, 9Bubbles free?
Is 脳トレの学校 free?
Which has better reviews, Concentration Game, 9Bubbles or 脳トレの学校?
Do Concentration Game, 9Bubbles or 脳トレの学校 have ads?
Which is updated more often, Concentration Game, 9Bubbles or 脳トレの学校?
Other comparisons
