How perfect can you draw a circle?
Circle Perfect is a simple, addictive game that challenges you to draw the most perfect circle you can. Your drawing is analyzed in real-time and scored from 0 to 100. Can you hit a perfect 100?
Your drawing is compared against a mathematically perfect circle using least-squares fitting. The score accounts for shape accuracy, how well the circle closes, and how much of a full rotation you covered.
A score of 100 means your drawing had extremely low deviation from a perfect circle, closed cleanly, and covered a full 360 degrees.
Very small circles don't have enough data points to evaluate accurately. Try drawing a larger circle.
No. Circle Perfect does not collect, store, or transmit any personal data. See our Privacy Policy for details.
Your privacy is important to us. Circle Perfect does not collect, store, or share any personal information. All game data remains on your device.
Read our full Privacy Policy →
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