Ring Sizer – Size Your Finger
Desidari Holding Ltd. Utilities iPhoneiPadiPod touch
Ring Sizer – Size Your Finger is a free Utilities app for iPhone and iPad by Desidari Holding Ltd. Rated 3.7/5 from 3 ratings. Requires iOS 18.0.
- Rating
- 3.7
- 3 ratings
- Price
- Free
- on the App Store
- Size
- 52 MB
- Age 4+
- Updated
- Oct 26
- 2026 · v1.1
Screenshots
About Ring Sizer – Size Your Finger
Find your ring size right on your iPhone. Measure an existing ring on screen or measure your finger without a ring, then get your diameter, circumference, and ring size in US, UK, EU, and JP sizing systems. No printing, paper size charts, account, or extra tools required. Whether you're buying a ring, choosing a gift, or helping a customer find the right size, you can get the measurements you need in seconds. IDEAL FOR • Finding your ring size before buying jewelry online • Measuring an existing ring that already fits • Measuring your finger when you don't have a ring • Choosing a ring size for a gift, engagement, or wedding • Helping customers compare ring sizes across different sizing systems KEY FEATURES ◆ MEASURE AN EXISTING RING Place a ring on your iPhone screen and adjust the on-screen guide to match its inner edge. Get its diameter, circumference, and corresponding ring size. ◆ NO RING? MEASURE YOUR FINGER Don't have a ring to measure? Use the finger measurement flow to find your size without an existing ring or a printed size chart. ◆ US, UK, EU & JP RING SIZES See your result in US, UK, EU, and JP sizing systems, making it easier to shop from jewelers and stores that use different size standards. ◆ DIAMETER & CIRCUMFERENCE Get more than a ring size. View the measured diameter and circumference to help compare sizes and check jewelry measurements. ◆ NO PRINTING OR EXTRA TOOLS Measure with your iPhone without printing a ring sizer or using a ruler, measuring tape, or other equipment. ◆ QUICK & SIMPLE Open the app, choose how you want to measure, and get your result in seconds. No account or lengthy setup required. FREQUENTLY ASKED QUESTIONS How can I find my ring size with my iPhone? You can measure an existing ring directly on your iPhone screen or use the finger measurement flow if you don't have a ring. Can I measure a ring I already own? Yes. Place a ring that fits you on the screen and adjust the guide to its inner edge to determine its measurements and size. How can I find my ring size without a ring? Use the finger measurement flow. It lets you estimate your ring size without an existing ring or a printed ring sizer. Which ring size systems are supported? The app shows ring sizes in US, UK, EU, and JP systems, along with diameter and circumference. Can I use it when buying a ring as a gift? Yes. If you have access to a ring that fits the person, you can measure it on your iPhone and use the result when comparing ring sizes. Is this useful for jewelers and jewelry sellers? Yes. Jewelers and sellers can use it as a quick way to measure rings and compare sizes across US, UK, EU, and JP sizing systems. SUBSCRIPTION INFORMATION Payment will be charged to your iTunes Account at confirmation of purchase. Your subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. The renewal cost depends on the selected subscription plan. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Support Address: [email protected] Privacy Policy: https://getringsize.app/pp Terms of Use: https://getringsize.app/tou
What’s new
Version 1.1 · Updated October 26, 2026
Bug fixes. Performance improvements. Stability enhancements. That's what this update is all about. A cleaner, more reliable experience. Update now and enjoy!
App privacy
The developer, Desidari Holding Ltd., reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: User ID
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Analytics, App Functionality
Alternatives to Ring Sizer – Size Your Finger
Looking for apps like Ring Sizer – Size Your Finger? Here are 6 similar apps on the App Store. The highest rated is Ring Sizer: Finger Measure App (5.0/5), and all 6 are free to download.
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RingDot - Ring Sizer
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Ring Sizer: Finger Measure App
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Ring Size Measurer
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Ring Sizer: Measure Ring Size
4.5
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Ring Sizer - Ring Size Finder
4.9
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Ring Sizer: Ring Measure
4.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Ring Sizer – Size Your Finger | 3.7 / 5 (3 ratings) | Free | October 26, 2026 | |
| RingDot - Ring Sizer | 4.1 / 5 (18) | Free | Apr 15, 2026 | Compare |
| Ring Sizer: Finger Measure App | 5.0 / 5 (2) | Free | Sep 22, 2026 | Compare |
| Ring Size Measurer | – | Free | Nov 26, 2025 | Compare |
| Ring Sizer: Measure Ring Size | 4.5 / 5 (10) | Free | Oct 14, 2026 | Compare |
| Ring Sizer - Ring Size Finder | 4.9 / 5 (9) | Free | Oct 6, 2026 | Compare |
| Ring Sizer: Ring Measure | 4.8 / 5 (35) | Free | Oct 25, 2026 | Compare |