Sizewise: Ring Sizer & Finder

Measure Ring Size in Seconds

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Meet five new premium themes inspired by the world's great jewelry houses. Find your ring size in seconds with just your iPhone. Lay a ring that fits on the screen, match the circle, done. No jeweler, no tape, no printable sizer. Free and private. BUY THE RIGHT SIZE THE FIRST TIME Resizing costs money and time, and a wrong-size surprise ring spoils the moment. Sizewise reads the inner diameter of any ring and gives you its exact size before you order. PERFECT FOR • Engagement rings borrow one of their rings and keep the proposal a secret • Wedding bands for both of you • Gifts for birthdays, anniversaries and Valentine's Day • Ordering rings online from any country EVERY SIZE YOU SHOP IN • US / Canada • UK / Australia • EU / ISO • Japan / China • Inner diameter in millimetres HOW IT WORKS 1. Place a ring that fits on the circle 2. Pinch or slide to match its inner edge 3. Read your size PRIVATE BY DESIGN No account, no ads, no tracking. Works fully offline. Download Sizewise free and order your next ring with confidence.

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New premium themes, inspired by jewelry houses. Each has its own colour palette. System, Light and Dark stay free.

Version 1.11.2

The developer, Anatoli Petrosyants, 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 Not Collected

    The developer does not collect any data from this app.

    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
    Anatoli Petrosyants
    Size
    1.5 MB
    Category
    Utilities
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © Anatoli Petrosyants
  • Developer Website
  • Privacy Policy

    • More by Anatoli Petrosyants

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