An in-browser yo-yo: a rigid body on a string that stays taut and slips on its axle, with the World Yo-Yo Contest's published WYYC2026 scoring over the top.

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.