Comparison

Quantum 3 vs circloO

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

Head to head
About

Quantum 3

An educational match-3 game that blends fun gameplay with quantum physics concepts. Players match quarks to build subatomic particles and learn about fundamental physics mysteries. It's a great introduction to particle physics for all ages.

Highlights
  • Match-3 gameplay
  • Learn quantum physics
  • Build subatomic particles
  • Explore fundamental physics
  • Puzzle-solving mechanics
Features
Read full description

Quantum 3 is an educational match-3 game for all ages where fun meets quantum physics! Build subatomic particles, learn about the mysteries of fundamental physics and deploy antimatter to clear the way! You'll match and swap quarks to make (and learn about) the baryons you need for each objective. Puzzle out the quantum properties of color, flavor and spin. So get in there and start your quantum-venture! Quantum 3 is puzzle-matching at its finest and a great intro to the world of particle physics! The game is free-to-play with no in-app purchases. The game is developed at Michigan State University by the Games for Entertainment and Learning Lab and is funded under grant PHY 1653405 by the National Science Foundation.

About

circloO

A colorful physics platformer where you guide a ball through growing circular levels. Collect circles to expand the play area, strategically using and avoiding obstacles. Discover unique physics mechanics and enjoy a vast collection of player-created levels.

Highlights
  • Circular physics puzzles
  • Level editor
  • Player-created levels
  • Unique physics mechanics
  • Growing levels
  • Hard Mode levels
Read full description

circloO is a colorful physics platformer in a growing circle. This app version contains all levels from circloO and circloO 2, plus brand-new bonus levels! There's also a level editor and already over 10,000 levels created by players like you! You're a small ball rolling around in a round level. Collect circles to grow the level circle. As it grows, everything stays in the level, so you'll have to avoid and use obstacles in everchanging ways. For example, a platform that was first very useful to gain height, may prove to be a challenging obstacle after the level has grown! You can only move left and right, so you'll want to use features of the level carefully to jump and gain height. You'll discover all sorts of physics features, such as changing gravity, a sea of tiny blocks, strange contraptions and even planets with a gravity field. In challenging parts, you'll find yourself fully immersed, pressing the screen as hard as you can trying to get closer to finally collecting that next circle. But don't worry: you'll never have to start over a level, so you can always try again really quickly! And I can guarantee you'll feel amazing once you finally manage it! circloO Complete features: - Lots of cool physics features: ropes, pulleys, changing gravity and much more! I've included quite a few mechanics for you to discover. - Over 75 fun, growing, ever more challenging levels! Can you complete the six almost-but-not-quite-impossible Hard Mode levels? - There's also a level editor and an ever increasing number of player created levels! - All levels from circloO 2 and the original circloO, plus 28 brand-new levels! - Unique physics puzzles in each level. - Great music and sound effects by Stijn Cappetijn. - Minimalist and colorful graphics. - The game will take most players three to five hours to complete. Level times are saved, so you can try to beat your own highscores and speedrun levels after that! Plus there are thousands of player-created levels to continue playing forever! - Relaxing yet challenging physics puzzle platforming fun! I'm very happy that circloO 2 on the web won the first Crazy Games developer contest out of 200 contestants! It was also third in the Kongregate contest of November 2018. You may remember it from CoolMath Games as well. Reviews: "It’s an excellent game that has a very playful and chilled out approach to the gameplay, whilst also featuring some wonderfully intricate level design. A very impressive puzzle platformer you’ll really want to roll with. Highly recommended." - Free Game Planet "The difficulty scales upwards nicely and you're constantly rewarded for learning new skills as these always come up in future levels." - Jayisgames The game contains occasional ads after a level, which can be removed with a one-time in-app purchase, which supports development as well. Have fun and I'm happy to hear what you think!

Screenshots

Quantum 34 screens
circloO4 screens

Verdict

The call

The clearest difference is in-app purchases: Quantum 3 at none against circloO's 1. Quantum 3 also leads on ads (none vs shown) and review sentiment (100% vs 89%). circloO's advantage is update cadence (every 2 months vs every 16 months) and ratings volume (2.4K vs 15). On price, rating and device support 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. circloO sells 1 one-off in-app purchase. Quantum 3 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Quantum 3 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: circloO has 2.4K ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 100% of Quantum 3's written reviews are positive against 89% of circloO's.

UpkeepUpdate frequency

Quantum 3 ships an update every 16 months, circloO every 2 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

Scorecard7 real differences · 3 level
Quantum 3 versus circloO: the parameters behind the verdict, then further details
ParameterQuantum 3circloO
PriceFreeFree
Rating5.0 (15 ratings) — better4.8 (2.4K ratings)
Positive reviews100.0% of reviews — better89.5% of reviews
Number of ratings152.4K — better
Update frequencyEvery 16 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.010 — better
Further details — not scored
Size124 MB63 MB
Age rating4+4+
DeveloperBrian WinnFlorian van Strien

Customer experience

Quantum 3

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

circloO

All ratings2,357 ratings
Positive96.9%
Neutral1.4%
Negative1.7%
Written reviews133 reviews
Positive89.5%
Neutral3.0%
Negative7.5%

Bugs and requests

Quantum 3

Not enough reviews yet to summarise bugs or requests.

circloO

Reported bugs

2 issues
  • Glitches with level progression
  • Inconsistent touch/click registration

Requested features

4 requests
  • More levels and content updates
  • Character customization options
  • Improved level editor tools
  • Difficulty settings or options

In-app purchases

None

Quantum 3

No in-app purchases

1 purchases

circloO

One-time1
  • Remove Ads$2.99

Questions

Is Quantum 3 free?
Quantum 3 is free to download, with no in-app purchases.
Is circloO free?
circloO is free to download, with in-app purchases available.
Which has better reviews, Quantum 3 or circloO?
Quantum 3 is rated higher. Quantum 3 averages 5.0 out of 5 from 15 ratings, while circloO averages 4.8 from 2.4K ratings.
Do Quantum 3 or circloO have ads?
circloO shows ads; Quantum 3 does not.
Which is updated more often, Quantum 3 or circloO?
Quantum 3 ships an update every 16 months, and circloO every 2 months. Most recently, Quantum 3 was updated on September 7, 2026 and circloO on September 9, 2026.

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