A Perfect Circle

Contains ads
10+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image

About this game

Unleash Your Inner Artist with a Twist of Math!

Ever wondered just how circular your doodles really are? A Perfect Circle turns simple sketches into an addictive challenge: Draw freehand circles on your device and get an instant, live score on your path to perfection. Powered by the isoperimetric quotient—a clever bit of computer vision math—this app rates your loops from 0% (chaotic scribble) to 100% (flawless orb). It's part game, part zen exercise, and 100% fun for all ages!

Why You'll Get Hooked: Live Scoring Magic: As you draw, watch your "Circle Perfection" percentage update in real-time. Steady hand? Smooth loop? You're golden. Wobbly line? The math doesn't lie—but it'll motivate you to try again!

Vibrant Random Colors: Each new drawing session explodes with a surprise hue, turning your canvas into a rainbow of attempts. No two circles feel the same.

High Score Thrills: Track your best score for the entire app session. Beat it? A celebratory "New High Score!" banner flashes at the top—pure bragging rights (that vanishes on your next draw).

Sleek, Distraction-Free Design: Jet-black background keeps the focus on your creation. Centered score display ensures it's easy to read, even mid-stroke. Works seamlessly with touch on mobile or mouse on desktop.

Perfect For:
Casual doodlers killing time.
Geometry buffs testing their precision.
Anyone up for a quick, rewarding brain break—think fidget spinner meets math puzzle.

Pro Tips to Hit 100%:
Start slow: Even pressure and a fluid, closed loop maximize your area-to-perimeter ratio.
Channel a compass: Imagine tracing an invisible coin for that ideal curve.
Practice makes perfect—your high score is waiting!

Love the math? Hit the reviews—we're indie devs fueled by your stars. Draw. Score. Repeat. What's your personal best?
Updated on
Jan 1, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Committed to follow the Play Families Policy

What’s new

Draw a Perfect Circle