circloO vs Sand Block
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Circular physics puzzles
- Level editor
- Player-created levels
- Unique physics mechanics
- Growing levels
- Hard Mode levels
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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!
Sand Block
Manipulate falling blocks that transform into sand to clear lines of the same color. Aim for high scores by strategically erasing sand and surviving as long as possible. Master block movement, rotation, and fast falling to achieve maximum points.
- Manipulate falling sand blocks
- Clear lines of same-colored sand
- Earn points for clearing lines
- Achieve high scores
- Strategic block movement
- Block rotation
- Fast falling blocks
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\A puzzle game with a new style/ This is a novel style puzzle game in which you manipulate blocks that turn into sand when they fall, and erase lines of sand of the same color. 【Game Contents】 ■Outline■ ・ The game is a puzzle game in which the player manipulates blocks to erase lines of sand of the same color. ・ The player must connect sand of the same color from the right end to the left end to erase the sand and earn points. ・ Players must aim for a higher score! ■Game Over Condition■ The game is over when the sand piles up to the border line at the top of the screen and 3 seconds have elapsed. ■Strategic■ ・ The more sand lines you erase in a row, the more points you get. ・ The more you erase sand lines in a row, the more points you will get. This time bonus increases as time goes by. The key to a high score is to survive as long as possible and erase lines efficiently! ■Three operations■ ・ Move blocks ・ Rotate blocks ・ Fast falling blocks
Screenshots
Verdict
circloO and Sand Block both sit at 4.8 stars, but that hides the real split: 89% of circloO's written reviews are positive against 27% of Sand Block's. circloO also leads on ratings volume (2.4K vs 36) and iOS requirement (10 vs 14.0). Sand Block's advantage is update cadence (daily vs every 2 months). On price, rating, ads and in-app purchases 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
Both are free to download. circloO sells 1 one-off in-app purchase and Sand Block sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for circloO against 4.7 for Sand Block. That said, the two scores are not equally well evidenced: circloO has 2.4K ratings behind it against 36, so its average is the more settled of the two. Written reviews are what separate them: 89% of circloO's written reviews are positive against 27% of Sand Block's.
circloO ships an update every 2 months, Sand Block daily. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.
| Parameter | circloO | Sand Block |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.4K ratings) — better | 4.7 (36 ratings) |
| Positive reviews | 89.5% of reviews — better | 26.9% of reviews |
| Number of ratings | 2.4K — better | 36 |
| Update frequency | Every 2 months | Daily — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10 — better | 14.0 |
| Further details — not scored | ||
| Size | 63 MB | 89 MB |
| Age rating | 4+ | 4+ |
| Developer | Florian van Strien | Rikuto Hosaka |
Customer experience
circloO
Sand Block
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
Sand Block
Not enough reviews yet to summarise bugs or requests.
In-app purchases
circloO
- Remove Ads$2.99
Sand Block
- Remove ads$0.99









