Ring Sizer: Size Measure Tool
Sizing Measurement App
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Find your perfect ring size in seconds — right from your phone. No tools, no guessing, no trips to the jeweller.
Ring Sizer gives you professional-grade accuracy with two simple methods: place a ring on screen or measure your finger directly. Whether you're shopping for an engagement ring, gifting a band, or checking your own size — get it right the first time.
◆ TWO WAYS TO MEASURE
► Ring Method — Place any ring on the adjustable on-screen circle. Match it perfectly and get your exact size instantly.
► Finger Width — Place your finger on the golden bar. Fine-tune with precision controls down to 0.1mm.
◆ WORKS WORLDWIDE
Convert between 8 international size standards:
● US sizes (0 to 16, quarter sizes)
● UK sizes (A to Z+4)
● EU, Japan, Italy, India, Brazil, China
One measurement. Every standard. Instantly.
◆ SAVE AND NAME YOUR SIZES
Give each measurement a memorable name:
► "My Wedding Ring"
► "Wife's Band"
► "Anniversary Gift"
Your personal ring size collection — beautifully organised and always accessible.
◆ SHARE SIZE CARDS
Export a beautiful size card with all your details — diameter, circumference, and international sizes. Send it to your jeweller, partner, or save it for later.
◆ FULL SIZE CHART
A complete reference table across all standards. Browse, compare, and find any size at a glance.
◆ PRO SIZING TIPS
Expert advice from professional jewellers:
► Best time of day to measure
► How temperature affects finger size
► Why band width matters
► Tips for measuring someone else
◆ DESIGNED FOR JEWELRY LOVERS
● Elegant gold-on-cream luxury design
● Smooth animations and intuitive controls
● Works on all iPhones
● No account required
● 100% private — your data stays on your device
∞ Ring Sizer Pro unlocks unlimited saved measurements, all international standards, and priority support.
Whether it's an engagement, a wedding, or a Wednesday — every ring deserves to fit perfectly.
Ring Sizer is available as a subscription. Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period.
Privacy Policy: https://sites.google.com/view/privac-policy-inovations
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Download Ring Sizer and find your perfect fit today.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Performance improvements across all devices.
The developer, Bouazza El Amri, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bouazza El Amri
- Size
- 17.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Norwegian Bokmål, Polish, Portuguese, Spanish
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
- In-App Purchases
Yes
- Lifetime access $4.99
- Copyright
- © Bouazza El Amri