Test your drawing precision by attempting to create perfect circles. This game uses computational geometry to analyze your drawings and provide instant, scientific scores. Compete with friends, globally, or for your university in various challenging modes.
1.0.7
June 19, 2026
Performance and reliability improvements, smarter notifications, best-of-10 random matches, and backend updates for competitive play.
Less than a coffee per month to challenge the world.
Perfect Circle uses real computational geometry, specifically least-squares circle fitting, to analyze every aspect of your drawing. It provides an instant perfection score from 0-100% based on factors like radial wobble, arc completeness, and curvature consistency.
Yes, Perfect Circle is free to download and play. The Practice Mode, which offers unlimited drawing attempts and detailed feedback, is entirely free. Competitive modes require a subscription.
The subscription for Perfect Circle is monthly at $1.99 and includes a 3-day free trial. This subscription unlocks access to Competitive Modes like the Global Daily Challenge, Friend Circles, University Circles, and 1v1 Challenges.
The Practice Mode with its scoring and analysis features can be played offline. However, Competitive Modes that involve global leaderboards, friend challenges, or university competitions will require an internet connection to function.
Perfect Circle has an age rating of 4+. This indicates it is suitable for children and adults alike, with no mature content.
The app was last updated on June 19, 2026, indicating active development. Updates typically include bug fixes, performance improvements, and potentially new features or challenges.
The provided data does not specify if the free version of Perfect Circle contains advertisements. However, since it is a freemium model with optional subscriptions for advanced features, it is possible that ads may be present in the free tier.
You can compete with friends by creating or joining 'Friend Circles,' which offer private leaderboards. Additionally, the '1v1 Challenges' feature allows you to challenge specific friends directly using unique friend codes.