Comparison

Brain Dots vs Happy Glass

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

Head to head
About

Brain Dots

A challenging puzzle game where you draw lines and shapes to make two balls collide. Collect different drawing tools and create your own levels to test the skills of players worldwide. It's a test of logic and flexible thinking.

Highlights
  • Bump two balls to clear stages
  • Draw lines and shapes freely
  • Collect over 25 varieties of pens
  • Create and share custom stages
  • Review and share victory moments
  • Tests logical thinking and flexibility
Features
Read full description

Over 50 million downloads! The only thing you need to do is to “bump two balls.” Will you be able to clear these simple-looking but actually difficult stages? ▼ The rules are simple! ◆ Let's bump the two balls All you need to do to clear a stage is to “make the blue and red balls bump”. Draw lines and shapes freely to move and roll the balls. Flexible thinking is going to become the key to victory. ◆ Let's collect pens Starting off with a simple pencil, moving onto color pencils, crayons and so on. We have prepared more than 25 varieties of pens of different colors and sizes. Collect various pens and walk through the stages. ◆ Share the moment of victory You can review the moment you cleared a stage on video or picture. Share it on SNS to show off your superior skills to your friends. Not to mention that watching your friends’ gameplay might also become a hint!? ◆ Create Stages Create your own stages and see if users all over the world can solve them. Over 3 million stages already created! ◆ Your brain abilities will be tested This game, continuing after Brain Wars, also tests your logical thinking and the flexibility of your mind. As this game includes the elements of riddle and “Escape the Room” type of games, we would recommend Brain Dots to people who enjoy brain-type puzzles, cards and strategy games. It might also have an impact on your children’s intellectual growth and preventing brain deterioration? ▼ Languages 15 languages! Brain Dots is played all over the world! Japanese / English / Korean / Traditional Chinese / Simplified Chinese / Spanish / French / Portuguese(Brazil) / Swedish / Finnish / Russian / Vietnamese / Thai / Indonesian / Hindi ▼ Latest information Twitter:@braindots_app Facebook:https://www.facebook.com/braindotsapp

About

Happy Glass

Fill a glass with liquid by drawing lines to solve physics-based puzzles. Get creative with your solutions to complete levels and make the glass happy again. Enjoy a fun and relaxing experience with many challenging stages.

Highlights
  • Draw lines freely to complete levels
  • Dynamic liquid filling mechanism
  • Smart and fun physics puzzles
  • Challenging level design
  • Relaxing and engaging theme
  • Numerous levels with more added
Features
Read full description

The glass is sad because it's empty. Your job is to draw a line to make the glass filled up with liquid and smile again! Try to find the best way to complete each level. You can come up with your own solution so be creative and don't be afraid to think out of the box! Some levels might look easy but let's see if you can actually get the 3 stars. FEATURES * Dynamic mechanism. Draw lines freely to complete levels! * Simple, smart and fun puzzles but can be challenging too * Lots of levels with more coming soon! * Fun and relaxing theme that will make you stay for quite some time SUBSCRIPTION By subscribing to Happy Glass, you get: - Non rewarded ads removed - 150 daily free coins - 30% bonus from free prizes - 2 free daily hints You can choose between 3 options : - 1 week ( free 3 days trial ), $7.99 - 1 month, $19.99 - 1 year, $99.99 These purchases are auto-renewable subscriptions. The subscription price will be charged to your iTunes account upon confirmation of purchase and in the 24 hours prior to the end of each subscription period as set out above (e.g - week, month or year). Cancel your subscription at any time in your iTunes Account Settings. If you do not cancel the subscription at least 24 hours before the expiry of any trial period, the subscription will automatically convert into a paid auto-renewing subscription. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. lionstudios.cc/terms lionstudios.cc/privacy https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Brain Dots4 screens
Happy Glass4 screens

Verdict

The call

The clearest difference is monetization model: Brain Dots at free with in-app purchases against Happy Glass's subscription. Happy Glass's advantage is ratings volume (99K vs 8.2K). On price, rating, review sentiment and update cadence 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. Brain Dots sells 10 one-off in-app purchases and Happy Glass sells 10 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Brain Dots holds the better App Store score, 4.4 against 4.3. That said, the two scores are not equally well evidenced: Happy Glass has 99K ratings behind it against 8.2K, so its average is the more settled of the two. Written reviews point the same way: 50% of Brain Dots's written reviews are positive against 49% of Happy Glass's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 29, 2026.

Scorecard2 real differences · 8 level
Brain Dots versus Happy Glass: the parameters behind the verdict, then further details
ParameterBrain DotsHappy Glass
PriceFreeFree
Rating4.4 (8.2K ratings) — better4.3 (99K ratings)
Positive reviews49.9% of reviews — better48.6% of reviews
Number of ratings8.2K99K — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size55 MB249 MB
Age rating12+12+
DeveloperTranslimit, Inc.Lion Studios

Customer experience

Brain Dots

All ratings8,180 ratings
Positive85.5%
Neutral5.7%
Negative8.7%
Written reviews1,908 reviews
Positive49.9%
Neutral10.8%
Negative39.3%

Happy Glass

All ratings98,677 ratings
Positive81.8%
Neutral7.3%
Negative10.9%
Written reviews2,048 reviews
Positive48.6%
Neutral12.1%
Negative39.3%

User reviews

Brain Dots

From 8.2K App Store ratings

What we love

  • 🧠 Challenging and engaging puzzles
  • 🎨 Variety of pen styles and customization options
  • ⚙️ Interesting physics-based gameplay
  • 👍 Fun for all ages

Room to improve

  • 💢 Excessive and intrusive ads
  • 🐛 Frequent crashes and bugs
  • 🔋 High battery consumption
  • 📱 Compatibility issues with older devices
  • 👀 Difficulty seeing around finger when drawing

Happy Glass

From 99K App Store ratings

What we love

  • 🚀 Fun and addictive gameplay
  • 👍 Challenging levels that make you think
  • 💡 Different game modes and obstacles
  • 🎨 Customizable cups and pencils

Room to improve

  • 🔍 Repetitive and easy levels at times
  • 📢 Excessive and repetitive ads
  • 🔒 Inappropriate ads shown
  • 🐛 Glitches and crashes
  • 💰 Expensive in-app purchases

Bugs and requests

Brain Dots

Reported bugs

3 issues
  • Crashes when trying to create own levels
  • Hint feature not working as expected
  • Inability to play on iOS 17 devices

Requested features

4 requests
  • Ability to save and transfer progress across devices
  • Option to disable hint prompts
  • More advanced level creation tools
  • Improved Apple Pencil support

Happy Glass

Reported bugs

3 issues
  • Screen going black after completing levels
  • Issues with ads not working properly
  • Inconsistent star/coin rewards

Requested features

5 requests
  • More original and challenging level designs
  • Reduce frequency of ads or provide ad-free option
  • Improve star/coin system to better motivate progression
  • Add more customization options
  • Improve level selection and navigation

In-app purchases

10 purchases

Brain Dots

One-time10
  • Mechanical pencil$0.99
  • Pen$0.99
  • Colored pencil$0.99
Show 7 more
  • Crayon$1.99
  • Brush$1.99
  • Watercolor painting brush$1.99
  • Decorated pen$2.99
  • Rainbow pencil$2.99
  • Fountain pen$3.99
  • Remove Cut-In Ads$3.99
10 purchases

Happy Glass

Subscriptions2
  • Happy Subscription3 Days trial$7.997 Days
  • Happy Subscription$19.991 Month
One-time8
  • 900 Coins$0.99
  • Grinch Pack$1.99
  • Starter Pack$1.99
Show 5 more
  • Remove Ads$2.99
  • Snow Bundle$2.99
  • 5000 Coins$4.99
  • Happy Bundle$6.99
  • Super Bundle$15.99

Questions

Is Brain Dots free?
Brain Dots is free to download, with in-app purchases available.
Is Happy Glass free?
Happy Glass is free to download, with in-app purchases available.
Which has better reviews, Brain Dots or Happy Glass?
Brain Dots is rated higher. Brain Dots averages 4.4 out of 5 from 8.2K ratings, while Happy Glass averages 4.3 from 99K ratings.
Do Brain Dots or Happy Glass have ads?
Both Brain Dots and Happy Glass show ads.
Which is updated more often, Brain Dots or Happy Glass?
Brain Dots ships an update every 3 weeks, and Happy Glass every 3 weeks. Most recently, Brain Dots was updated on October 29, 2026 and Happy Glass on October 29, 2026.

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