Comparison

Concentration Game, 9Bubbles vs Brain training game/Tap Number

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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!

About

Brain training game/Tap Number

A simple yet addictive game that tests your reflexes by tapping numbers or alphabets in sequential order. With increasing grid sizes and difficulty levels, it's perfect for quick brain training and boosting concentration.

Highlights
  • Number and Alphabet Modes
  • Adjustable Difficulty Levels
  • Global Ranking System
  • Quick Play Option
  • Daily Brain Training
  • Boosts Reflexes and Focus
Features
Read full description

Tap Number is a simple yet addictive brain training number tapping game! Tap the numbers or alphabets in order and test how fast your reflexes are. 【How to Play】 Just tap the numbers in order from 1! In Alphabet Mode, tap from A in sequence. From easy 3×3 stages to challenging 11×11 grids, the difficulty increases and your brain works harder! 【Features】 - Number Mode & Alphabet Mode - Difficulty levels for beginners and advanced players - Global ranking system to compete with friends and players worldwide - Quick play for short breaks - Perfect for daily brain training and concentration boost 【Why You’ll Love It】 - Great for killing time with fun - Boosts reflexes, reaction speed, and focus - Exciting and refreshing gameplay that never gets boring - Feel the thrill every time you break your best record! Train your brain and reflexes while having fun! Download Tap Number now and challenge your speed! --- About in-app subscriptions - What you can do with an in-app subscription You can remove ads in the app. $ 0.99 / month --- Price may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. After purchase, manage your subscriptions in App Store Account Settings. Any unused portion of a free trial period, will be forfeited when the user purchases a subscription. --- privacy policy: https://zero2one-mys.github.io/tap-number/privacy-policy/ Terms & Conditions: https://zero2one-mys.github.io/tap-number/terms-and-conditions/

Screenshots

Concentration Game, 9Bubbles3 screens
Brain training game/Tap Number3 screens

Verdict

The call

The clearest difference is review sentiment: Brain training game/Tap Number at 100% against Concentration Game, 9Bubbles's 55%. Concentration Game, 9Bubbles's advantage is rating (4.4 vs 1.0) and update cadence (every 10 days vs every 2 months). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Concentration Game, 9Bubbles sells 4 one-off in-app purchases and Brain training game/Tap Number sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Concentration Game, 9Bubbles holds the better App Store score, 4.4 against 1.0. 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 complicate that: 55% of Concentration Game, 9Bubbles's written reviews are positive against 100% of Brain training game/Tap Number's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Concentration Game, 9Bubbles ships an update every 10 days, Brain training game/Tap Number every 2 months. The most recent releases landed on October 22, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
Concentration Game, 9Bubbles versus Brain training game/Tap Number: the parameters behind the verdict, then further details
ParameterConcentration Game, 9BubblesBrain training game/Tap Number
PriceFreeFree
Rating4.4 (46 ratings) — better1.0 (1 ratings)
Positive reviews54.5% of reviews100.0% of reviews — better
Number of ratings46 — better1
Update frequencyEvery 10 days — betterEvery 2 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size43 MB56 MB
Age rating4+4+
DeveloperLisfee, Inc.ryo fujise

Customer experience

Concentration Game, 9Bubbles

All ratings45 ratings
Positive84.4%
Neutral4.4%
Negative11.1%
Written reviews55 reviews
Positive54.5%
Neutral5.5%
Negative40.0%

Brain training game/Tap Number

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Concentration Game, 9Bubbles

One-time4
  • FEEL GOOD$1.99
  • TRY STAGE28$1.99
  • 10 LIFEs$1.99
Show 1 more
  • DELETE ADs$1.99
1 purchases

Brain training game/Tap Number

Subscriptions1
  • Remove in-app advertisements.$0.991 Month

Questions

Is Concentration Game, 9Bubbles free?
Concentration Game, 9Bubbles is free to download, with in-app purchases available.
Is Brain training game/Tap Number free?
Brain training game/Tap Number is free to download, with in-app purchases available.
Which has better reviews, Concentration Game, 9Bubbles or Brain training game/Tap Number?
Concentration Game, 9Bubbles is rated higher. Concentration Game, 9Bubbles averages 4.4 out of 5 from 46 ratings, while Brain training game/Tap Number averages 1.0 from 1 ratings.
Do Concentration Game, 9Bubbles or Brain training game/Tap Number have ads?
Both Concentration Game, 9Bubbles and Brain training game/Tap Number show ads.
Which is updated more often, Concentration Game, 9Bubbles or Brain training game/Tap Number?
Concentration Game, 9Bubbles ships an update every 10 days, and Brain training game/Tap Number every 2 months. Most recently, Concentration Game, 9Bubbles was updated on October 22, 2026 and Brain training game/Tap Number on October 17, 2026.

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