Ring Sizer: Finger Size & Fit

Ring Size Chart & Converter

Only for iPhone

Free · In‑App Purchases

iPhone

No subscription. Measure your ring size once, own it forever. $4.99 total. The simplest way to find your ring size - no paper, no string, no jeweler required. Place your ring on the screen, adjust the circle, and get your exact size in seconds. One tool, every size standard, zero subscriptions. WORKS TWO WAYS - Place an existing ring on screen to match the size instantly - Measure your finger directly using the on-screen guide EVERY SIZE STANDARD INCLUDED - US / Canada - UK / Australia - Europe / ISO - Japan / China - Millimeters & inches BUILT FOR THE MOMENT - Engagement ring shopping - Wedding band ordering - Jewelry gifts - measure while they sleep - Online ring purchases with no size guide WHY RING SIZER - No subscription - $4.99 once, yours forever - Save your measurements for every finger - Lightweight - under 5MB - Clean, accurate, no bloat HOW IT WORKS 1. Place your ring on the circle on screen 2. Drag the slider until the circle matches your ring 3. Read your size in any international standard 4. Save it - never measure again Whether you're buying an engagement ring or ordering jewelry online, get the size right the first time. No subscriptions. No nonsense. $4.99. https://www.apple.com/legal/internet-services/itunes/dev/stdfla/

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The developer, Cloud Motion Lab LLC, 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 Linked to You

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

    • Identifiers
    • Usage Data

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
    • Cloud Motion Lab LLC
  • Size
    • 7.8 MB
  • Category
    • Utilities
  • Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
  • Languages
    • English
  • Age Rating
    4+
  • In-App Purchases
    Yes
  • Copyright
    • © 2026 Cloud Motion Lab LLC
  • Privacy Policy

    • More by Cloud Motion Lab LLC