Draw the perfect circle.
One attempt. One circle. Five seconds. A daily challenge shared by the world, scored by the steadiness of your hand alone.
Download on the App Store →How it works
Open the app
Every day at midnight a new circle target appears. Same one for everyone, worldwide.
One attempt, one stroke
Trace it with your finger in one continuous motion. Lift and you're done.
See your score
Scored 0–100% against a mathematical best fit. Share, compare, build a streak.
See it in action
What's inside
Daily ritual
One scored attempt per day. The whole world plays the same challenge at the same time.
Global leaderboards
Daily, weekly, and all-time boards via Game Center. Friends-only view if you prefer.
Streaks
Play every day to build your streak. Premium protects it against missed days.
Practice mode
Free drawing any time, no pressure, no score submitted. Works offline.
Archive
Premium members keep every circle they've ever drawn, synced across your devices.
Privacy first
No accounts, no analytics, no servers of ours. Your data stays on your device or in your iCloud.