Comparison

circloO vs Ocean Chess

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

Head to head
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!

About

Ocean Chess

Read full description

Think you know chess? Think again. Ocean Chess takes chess puzzles to a whole new level with boards that break all the rules. Teleport your pieces across the board, step on a transformation tile to become a queen, and watch out for deadly traps! 300 hand-crafted puzzles. One forced solution each. No luck, no guessing — just pure chess logic pushed to its limits. When normal chess feels too easy, try Blindfold mode — memorize the board before it disappears, then solve it from memory. Or race the clock in Time Trial and see how fast you can think. Every puzzle is a new challenge. Every solution is satisfying. Are you smart enough to solve them all?

Screenshots

circloO4 screens
Ocean Chess4 screens

Verdict

The call

The clearest difference is update cadence: Ocean Chess at every 5 days against circloO's every 2 months. circloO's advantage is iOS requirement (10 vs 15.0). On price, ads, in-app purchases 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 and Ocean Chess sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

circloO ships an update every 2 months, Ocean Chess every 5 days. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
circloO versus Ocean Chess: the parameters behind the verdict, then further details
ParametercircloOOcean Chess
PriceFreeFree
Rating4.8 (2.4K ratings) — better—
Positive reviews89.5% of reviews—
Number of ratings2.4K — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10 — better15.0
Further details — not scored
Size63 MB129 MB
Age rating4+4+
DeveloperFlorian van StrienTheodor Norenberg

Bugs and 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

Ocean Chess

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

circloO

One-time1
  • Remove Ads$2.99
6 purchases

Ocean Chess

One-time6
  • 500 Coins$0.99
  • 1200 Coins$1.99
  • No Ads$2.99
Show 3 more
  • 2500 Coins$3.99
  • 6000 Coins$7.99
  • 25000 Coins$29.99

Questions

Is circloO free?
circloO is free to download, with in-app purchases available.
Is Ocean Chess free?
Ocean Chess is free to download, with in-app purchases available.
Do circloO or Ocean Chess have ads?
Both circloO and Ocean Chess show ads.
Which is updated more often, circloO or Ocean Chess?
circloO ships an update every 2 months, and Ocean Chess every 5 days. Most recently, circloO was updated on October 10, 2026 and Ocean Chess on October 9, 2026.

Other comparisons