Test your hand precision with the most addictive drawing challenge. Draw a circle, get an instant score from 0 to 100. Simple concept. Impossible to put down.
Download on the App StoreDraw a circle and get a precision score from 0 to 100 the moment you lift your finger. No waiting, no loading.
Toggle a helpful grid on or off to guide your hand. Use it as training wheels — or go freehand for the real challenge.
Your best score and total attempts are always visible. Watch yourself improve from 60s to 90s over dozens of tries.
No clutter. No distractions. Just a white canvas and your finger. The minimal design keeps you focused on perfection.
No internet required. Play on a plane, in the subway, or anywhere you want. Your scores are saved locally.
The most dangerous feature: tap to clear and instantly try again. You'll think "just one more" for the next 30 minutes.
Touch the screen and drag your finger in a circle. Go slow for precision, or fast for a challenge.
The app measures radius consistency, smoothness, and closure — then gives you a score from 0 to 100.
Tap clear and try again. Chase a higher score. Beat your best. Challenge your friends. Never stop.
Download Perfect Circle and find out if your hand is as steady as you think. Fair warning — it's harder than it looks.
Download on the App Store