Perfect Circle
Ian Sidor Games iPhoneiPadiPod touch
Perfect Circle is a free Games app for iPhone and iPad by Ian Sidor. Requires iOS 17.4. Updated August 31, 2026.
- Price
- Free
- on the App Store
- Size
- 103 MB
- Age 12+
- Updated
- Aug 31
- 2026 · v1.1.1
Screenshots
About Perfect Circle
Perfect Circle challenges you to do something that sounds simple but is surprisingly difficult, 'draw the perfect circle'. Watch the demo circle then take your turn and try to match it as closely as possible. You are not just judged on whether it looks right but on how well you control the entire motion from start to finish. Your performance is scored across three key areas: • Time – complete your circle as close to the 3-second target as possible. Too fast or too slow & your score drops. • Loop – how circular is your shape? The closer your drawing is to a true circle, the better your score. • Flow – how smooth was your movement? Sudden speed changes, jerks or hesitation will cost you. It is easy to understand, difficult to master and incredibly satisfying to improve. Every attempt pushes your precision, rhythm and control a little further. Compete against players around the world on the global leaderboard and see how your circle skills stack up. Features: • Simple one-touch gameplay • Unique scoring based on Time, Loop & Flow • Global leaderboard competition • Quick sessions with high replay value • A deceptively challenging test of precision and control How perfect is your circle?
What’s new
Version 1.1.1 · Updated August 31, 2026
Version 1.1.1 PLAY ANYWHERE, EVEN OFFLINE • No signal? No problem. Your score is now saved on your device and submitted automatically the next time you're connected, so a patchy connection never costs you a run. • Perfect Circle now recognises when you're genuinely offline and quietly saves your score instead of interrupting you with an error. If something else goes wrong, you can retry straight from the results screen without losing your score. A NEW LOOK • Brand new app icon, backdrop and launch screen. • Your background colour now reflects your personal best. Everyone starts on deep teal and works up through ten bold shades — purple, forest green, burnt orange, cyan, magenta, amber, lava red, indigo — with the original Perfect Circle blue reserved for those who get close to a flawless 100. Your colour is saved, so the game always opens in the shade you've earned. SETTINGS AND YOUR NAME • A new settings screen, with separate toggles for music and sound effects. • Change your leaderboard name whenever you like — and if a rename doesn't go through, the game now tells you instead of failing silently. FIXES • Fixed a scoring bug on devices with both a mouse and a touchscreen (iPads with a trackpad, touch laptops), where one stroke could be recorded twice and throw off your Loop score. • Fixed cases where a good circle was judged a failed attempt, and vice versa. • Fixed the leaderboard occasionally showing up blank after a run. • Various stability and performance improvements. Thanks for playing. Keep drawing.
App privacy
The developer, Ian Sidor, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: User ID
- User Content: Other User Content
Used for: Product Personalization, Other Purposes