Ring Sizer: Risi 4+

Size, measure, find, convert

Axel Le Pennec

    • 4.6 • 22 Ratings
    • Free
    • Offers In-App Purchases

Screenshots

Description

Quickly and easily find the perfect ring size with this ring and finger sizing app—offering the same precision as your jeweler, from the comfort of your home.

Whether you're a professional jeweler, a frequent shopper, or purchasing your first ring, this app ensures the perfect fit for every special occasion—engagements, weddings, birthdays, holidays, or surprises! Measure fingers or rings with ease, whether it's for yourself, a friend, a family member, or anyone special, and convert sizes across international standards. It’s the go-to tool for anyone buying a ring online, eliminating the fear of choosing the wrong size.

• Get the exact size of any ring: Measure the diameter or circumference in either metric (millimeters) or imperial (US inches) units, for yourself or someone else.
• Accurately measure finger size: Easily measure finger width, perfect for when you don't have a ring on hand.
• International size conversions: Seamlessly switch between popular global sizing systems (US/CA/MX, UK/AU/NZ, EU/ISO, JP/CN, and more) while maintaining accuracy.
• Save measurements: Keep ring and finger sizes saved for future reference and easy access.
• Share measurements: Share size info with jewelers or friends via text, email, or social media.

No more guessing! With this app, shop confidently and experience the joy of buying or giving a perfectly sized ring that will be cherished forever. Make special moments unforgettable with a ring that fits just right.

To unlock all features and functionality, you can make a one-time in-app purchase for lifetime access (no subscription). This purchase will be charged to your Apple account at the time of confirmation.

Privacy Policy: https://ringfitter.alpennec.com
/privacy
Terms and Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s New

Version 2025.5

Enjoying the app? Please take a moment to rate the app and write a review on the App Store! This helps us a lot.

In this update:
• Adding support for iPhone 16e, iPad 11 and iPad Air M3
• Various improvements
• General performance enhancements and bug fixes

As always, don't hesitate to reach out by email with feedback, issues, and suggestions.
Thanks!

Ratings and Reviews

4.6 out of 5
22 Ratings

22 Ratings

Peleas22 ,

Great app if you are in the jewelry business

Makes dealing with conversions from the standard US ring sizes to all international standards a breeze. I use this on a daily basis for my company, which is a jewelry B2B.

Pv1366 ,

Convenient and Easy to Use….

But accuracy will never be the same as a proper measurement. If you want a ring to be a surprise then secretly borrowing one of your loved one’s ring or using this app are the two best options. The app is super simple to use and makes measuring your ring size really convenient. I’m not entirely sure how accurate it is, but it’s definitely a helpful tool if you want an estimate without having to visit a jeweler. Overall, a great option to try!

Developer Response ,

Thanks for your thoughtful review! 😊 I’m glad you found the app convenient and easy to use—especially for those surprise ring moments! 💍 While a jeweler’s measurement is always the most precise, the app is designed to give a reliable estimate to help along the way. If you ever have any suggestions or need assistance, feel free to reach out! ✨ - Axel

Zed from power rangers ,

Great apps

This the app that works for me. Works perfectly for my device and love to do whole family ring size

Developer Response ,

Thank you so much for your kind words! 😊 We're glad the app works perfectly for you and your family. Helping you find the right ring size effortlessly is exactly what we aimed for! - Axel

App Privacy

The developer, Axel Le Pennec, 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:

  • Purchases
  • Location
  • Identifiers
  • Usage Data

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

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