Circle Judge - Roundness Check

Draw a circle, get a score

Free · Designed for iPad

Draw a circle freehand and get its roundness (circularity) scored. The app analyzes your stroke automatically and instantly shows how close it is to a perfect circle in percent. ● Features * One-tap scoring: draw a circle and lift your finger—shows 0–100% roundness * Easy comparison: overlays a same-size reference circle (toggle on/off) * Customization: freely choose pen color and guide color * Simple sharing: share the drawn circle as an image with the score * Appearance: supports Light/Dark Mode ● Great for * Practicing steady, freehand circles * Visualizing and improving hand jitter in design/sketching * Having fun “roundness challenges” with friends and family ● How to use 1. Trace a circle with your finger on the screen 2. Lift your finger to auto-score and show the reference circle 3. Tap Share to send a square image with the score

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The developer, MITSUKO MARGOT KUBOTA ONO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

  • Seller
    • MITSUKO MARGOT KUBOTA ONO
  • Size
    • 5.4 MB
  • Category
    • Graphics & Design
  • Compatibility
    Requires iOS 16.6 or later.
    • iPhone
      Requires iOS 16.6 or later.
    • iPad
      Requires iPadOS 16.6 or later.
    • Mac
      Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English and Japanese
  • Age Rating
    4+
  • Copyright
    • © MITSUKO ONO
  • Developer Website
  • Privacy Policy

    • More by MITSUKO MARGOT KUBOTA ONO

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