About ao

ao - the 6th in our "focus" series! (aa, uu, ff, au, rr, ao, rl, sp & th)

ao - the 6th in our "focus" series! (aa, uu, ff, au, rr, ao, rl, sp & th)

Expanding and contracting circle. Different radiuses.

Just like other apps in our series, the more you get into each level, the more it changes. There are theoretically infinite ways you can complete each, it makes for great fun.

You can also top the leaderboard and earn medals! (bronze, silver and gold). There's 175 levels to solve right now, intertwined with all sorts of tweaks and surprises. You can also go back and replay any level you've already passed, at any time (Choose Level). If you're stuck on a really tricky level, skip it! (Tap Skip on the Fail Screen) If you can't wait, unlock all 175 levels and replay at your own pace! (Choose Level > Unlock All Levels)

Thanks for all your support, I hope you're enjoying the "focus" series thus far.

Handmade in Australia,

General Adaptive

What's New in the Latest Version 4.0.0

Last updated on Oct 24, 2026
First update in 7 years! Complete refresh of the classic 'ao'. Thanks for playing!
A fresh 300 levels, refined user experience and much more!

Additional Game Information

Latest Version

4.0.0

Uploaded by

Hector Ruiz

Requires Android

Android 7.1+

Available on

Content Rating

Everyone

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Security Report

ao

4.0.0

The Security Report will be available soon. In the meantime, please note that this app has passed APKPure's initial safety checks.

SHA256:

edbaeff846f6a92b417b747cd3164f17aa11702819ac94b55fb3ade32ffdcb09

SHA1:

b8de3ad53fceb40d82d22e0c1a154b923d053ce3