“OCO is an exceptionally clever one-touch puzzle-platformer” 8/10 Pocket Gamer
“Gloriously addictive and intelligent puzzles” 8/10 Touch Arcade

Immerse yourself in the beautiful audio-visual world of OCO.

Use simple one-touch controls to launch, rush, crash, glide, warp, and hang as you solve 135 hand-crafted puzzles.

Create and share your own designs using the built-in editor and explore thousands of user-generated levels online.


• Simple one-touch controls
• Complex challenging puzzles
• Precision platforming
• 135 unique levels
• Beautiful minimal design
• Procedurally-generated soundtrack for every level
• Built-in editor (create levels and challenge friends to complete them!)
• Online community
• 30,000+ user-generated levels
• Daily challenges
• ‘Perfect solution’ challenges for all levels


• Runner-up ‘Big Indie Pitch’, Develop, Brighton, 2018
• Finalist ‘Very Big Indie Pitch’ Pocket Gamer Connects, London, 2017

What’s New

Version 1.216

User-generated level leaderboards

Ratings and Reviews

4.6 out of 5
1K Ratings

1K Ratings

123CleverFox ,

Best game ever!

This game is so fun and entertaining. It is difficult at times, but not so difficult that you can’t play. It also includes a feature where you can create your own level and play other peoples levels. My only problem is that there are adds, but not to many. I like how you can get 200 bits just by watching one add. Thank you for creating this awesome game!

MrSkinnyFingers ,

Amazing, but make sure you use WiFi

This game is perfectly paradoxical for its simplicity is what makes it entertaining. This game takes a different spin to puzzlers out there, and I can’t say that I know any other game like it. However, there appears to be a bug that hinders our fun. If you plan to take this game on the road, I hope you have a portable WiFi router because it cannot function without WiFi, not even Cellular Data can suffice as a replacement. May you please, the developers of this game, find the issue and eradicate it so this delicacy may not be tarnished.

Developer Response ,

Hi MrSkinnyFingers. We had some server issues yesterday which should be improved today. Please let us know if you have any more issues. Thanks.

Angrynoodle1 ,


I don’t usually review things on the app store, but dang is this good! As a mario maker addict I can say that this level editor is awesome. The only issue I have is with the frequency of ads when playing levels, but even then, they will never play while editing one and I respect that! controls are tight, the standard levels are awesome and the level creator is simple and deep. I’m amazed this is free.


112.2 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
In-App Purchases
  1. x 2000 bits + NO ADS $0.99
  2. x 5000 bits + NO ADS $1.99
  3. x 8000 bits + NO ADS $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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