Comparison

Physics Box vs circloO

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

Head to head
About

Physics Box

Experiment with physics in a digital sandbox. Combine various objects and tools like thrusters, magnets, and antigravity to create unique contraptions and observe their interactions. Unleash your creativity to build complex machines and challenge yourself with scoring objectives.

Highlights
  • Add thrusters, ropes, magnets, and antigravity
  • Explode objects and apply forces
  • Toggle gravity on/off
  • Place static anchors
  • Link pieces together
  • Build scoring machines and pinball games
Features
Read full description

Physics Box is a physics toy box. Pick an object and put it in the play area. Combine and mix objects and see what happens. - Add thrusters, ropes, magnets and antigravity. - Tap to explode and apply forces to all nearby objects. - Turn gravity on or off. - Place static anchors. - Link pieces together. - Build an efficient bumper scoring machine and beat the high score. - Build a pinball machine? - Build a music machine? Use your imagination and most of all, have fun!

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

Physics Box4 screens
circloO4 screens

Verdict

The call

The clearest difference is in-app purchases: Physics Box at none against circloO's 1. Physics Box also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). circloO's advantage is ratings volume (2.4K vs 14). On price, rating, review sentiment 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. Physics Box asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Physics Box against 4.8 for circloO. That said, the two scores are not equally well evidenced: circloO has 2.4K ratings behind it against 14, so its average is the more settled of the two. Written reviews are what separate them: 83% of Physics Box's written reviews are positive against 89% of circloO's.

UpkeepUpdate frequency

Physics Box ships an update fortnightly, circloO every 2 months. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
Physics Box versus circloO: the parameters behind the verdict, then further details
ParameterPhysics BoxcircloO
PriceFreeFree
Rating4.7 (14 ratings)4.8 (2.4K ratings) — better
Positive reviews83.3% of reviews89.5% of reviews — better
Number of ratings142.4K — better
Update frequencyFortnightly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.010 — better
Further details — not scored
Size31 MB63 MB
Age rating4+4+
DeveloperLes BirdFlorian van Strien

Customer experience

Physics Box

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

circloO

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

Bugs and requests

Physics Box

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

Physics Box

No in-app purchases

1 purchases

circloO

One-time1
  • Remove Ads$2.99

Questions

Is Physics Box free?
Physics Box 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, Physics Box or circloO?
circloO is rated higher. Physics Box averages 4.7 out of 5 from 14 ratings, while circloO averages 4.8 from 2.4K ratings.
Do Physics Box or circloO have ads?
circloO shows ads; Physics Box does not.
Which is updated more often, Physics Box or circloO?
Physics Box ships an update fortnightly, and circloO every 2 months. Most recently, Physics Box was updated on October 11, 2026 and circloO on October 10, 2026.

Other comparisons