Comparison

Iq Brain Test, Math for adults vs Concentration Game, 9Bubbles

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

Head to head
About

Iq Brain Test, Math for adults

Enhance your mental math skills with engaging games and practice modes. Improve logic, memory, and IQ through timed arithmetic challenges and puzzles. Track progress and compete with friends to boost cognitive abilities.

Highlights
  • Mental arithmetic practice
  • Multiplication tables
  • Logic and memory training
  • Timed math puzzles
  • IQ development
  • Progress tracking
Features
Currently charting
Read full description

Keep your mind sharp and agile with Quick Brain! Discover a more engaging way to boost your cognitive abilities. Quick Brain isn't just about numbers; it’s a personal space for your mind to stay active, focused, and resilient. By blending simple arithmetic with creative puzzles, we’ve created a workout for your brain that feels like a game, not a chore. A complete cognitive toolkit in one app: By providing essential mental stimulation, our app helps you improve your memory and maintain a quick mind in your daily life. UNLOCK YOUR MENTAL POTENTIAL Quick Brain is a universal platform designed to support your intellectual growth. Regular sessions help you navigate complex tasks with ease by enhancing: • Logic and Problem-Solving: Develop the ability to see patterns and find solutions faster. • Memory and Concentration: Strengthen your focus and keep your mind from wandering. • Thinking Speed: Train your brain to process information more efficiently under pressure. • Mental Flexibility: Learn to switch between different types of tasks without losing momentum. EXPLORE OUR PRACTICE MODES We offer a variety of challenges to keep your training diverse and exciting: • Strategic Puzzles: Classic 2048 and Sudoku to improve your foresight and planning. • Logic and Spatial Games: Matches and Connect Dots for non-standard thinking. • Reaction Drills: Quick Math and True/False modes to sharpen your instincts. • Custom Training: Adjust sessions to focus on what you need today. • Balance Mode: A dedicated space for testing your mental balance and accuracy. Your journey starts with simple tasks that gradually adapt to your skill level. Studies show that engaging in rapid mental exercises activates the brain regions responsible for logic and memory. Just 5 minutes a day can help you build a lasting habit of mental clarity and confidence. It’s the perfect mindful break for a busy day. Privacy Policy: https://brainsoft-apps.com/?page_id=1349 Terms of Use: https://brainsoft-apps.com/?page_id=1376

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!

Screenshots

Iq Brain Test, Math for adults4 screens
Concentration Game, 9Bubbles3 screens

Verdict

The call

Iq Brain Test, Math for adults and Concentration Game, 9Bubbles both sit at 4.4 stars, but that hides the real split: 55% of Concentration Game, 9Bubbles's written reviews are positive against 31% of Iq Brain Test, Math for adults's. Concentration Game, 9Bubbles also leads on iOS requirement (12.0 vs 16.0). Iq Brain Test, Math for adults's advantage is ratings volume (810 vs 46) and chart position (#189 vs unranked). On price, rating, update cadence and ads 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. Iq Brain Test, Math for adults sells 10 in-app purchases, starting at $1.99 per month and Concentration Game, 9Bubbles sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Iq Brain Test, Math for adults against 4.4 for Concentration Game, 9Bubbles. That said, the two scores are not equally well evidenced: Iq Brain Test, Math for adults has 810 ratings behind it against 46, so its average is the more settled of the two. Written reviews are what separate them: 31% of Iq Brain Test, Math for adults's written reviews are positive against 55% of Concentration Game, 9Bubbles's.

UpkeepUpdate frequency

Iq Brain Test, Math for adults ships an update fortnightly, Concentration Game, 9Bubbles every 10 days. Both last shipped on November 2, 2026.

Scorecard4 real differences · 7 level
Iq Brain Test, Math for adults versus Concentration Game, 9Bubbles: the parameters behind the verdict, then further details
ParameterIq Brain Test, Math for adultsConcentration Game, 9Bubbles
PriceFreeFree
Rating4.4 (810 ratings) — better4.4 (46 ratings)
Positive reviews31.3% of reviews54.5% of reviews — better
Number of ratings810 — better46
Update frequencyFortnightlyEvery 10 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank#189 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size375 MB43 MB
Age rating4+4+
DeveloperGenioworks Consulting & It-Services UG (haftungsbeschrankt)Lisfee, Inc.

Customer experience

Iq Brain Test, Math for adults

All ratings791 ratings
Positive84.7%
Neutral5.9%
Negative9.4%
Written reviews198 reviews
Positive31.3%
Neutral11.1%
Negative57.6%

Concentration Game, 9Bubbles

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

Bugs and requests

Iq Brain Test, Math for adults

Reported bugs

10 issues
  • Connect the Dots game stuck at level 29
  • Multiplication mode crashes or functions incorrectly
  • White screen display issues
  • App crashes on launch for some devices
  • Daily workout mode crashes when selected
Show 5 more
  • Game logic errors with wrong answer validation
  • Progress resets after updates
  • Multiplication timer too fast with missing answer options
  • Balance mode answer selection not registering correctly
  • App freezes or becomes unresponsive

Requested features

10 requests
  • Restore competitive bot mode with medals/weekly tasks
  • Add Arabic language support
  • Implement age-appropriate difficulty levels
  • Add permanent purchase option instead of subscription
  • Improve translation quality
Show 5 more
  • Reduce ad frequency significantly
  • Add more game variety and content
  • Implement offline play capability
  • Add dark mode option
  • Better accessibility features for visually impaired users

Concentration Game, 9Bubbles

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Iq Brain Test, Math for adults

Subscriptions9
  • Special Offer$1.991 Month
  • Premium Special offer3 Days trial$1.997 Days
  • Premium7 Days trial$4.491 Month
Show 6 more
  • Premium3 Days trial$4.991 Month
  • Premium3 Days trial$5.997 Days
  • Special Offer3 Days trial$17.991 Year
  • Premium$22.491 Year
  • Improve your math skills3 Days trial$26.991 Year
  • Premium3 Days trial$29.991 Year
One-time1
  • Premium Access$39.99
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

Questions

Is Iq Brain Test, Math for adults free?
Iq Brain Test, Math for adults 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, Iq Brain Test, Math for adults or Concentration Game, 9Bubbles?
Iq Brain Test, Math for adults is rated higher. Iq Brain Test, Math for adults averages 4.4 out of 5 from 810 ratings, while Concentration Game, 9Bubbles averages 4.4 from 46 ratings.
Do Iq Brain Test, Math for adults or Concentration Game, 9Bubbles have ads?
Both Iq Brain Test, Math for adults and Concentration Game, 9Bubbles show ads.
Which is updated more often, Iq Brain Test, Math for adults or Concentration Game, 9Bubbles?
Iq Brain Test, Math for adults ships an update fortnightly, and Concentration Game, 9Bubbles every 10 days. Most recently, Iq Brain Test, Math for adults was updated on November 2, 2026 and Concentration Game, 9Bubbles on November 2, 2026.

Other comparisons