Ring Sizer by Jason Withers ©
Everyone
Merge entertainment and productivity together through Ring Sizer by Jason Withers ©. Uniqo Lab. designed this system just for you. Check Lifestyle for details.
How To Use Pro Features Ring Sizer by Jason Withers ©
Handy utility from Jason Withers created to easily find the ring size in the different countries. There are some unique features supported by the app:
- choose metric or imperial units
- choose diameter or circumference
- use visual guides for more precise measuring
- supports sizes of the USA, Australia, United Kingdom, Europe, Japan and China
- easily share your ring size on social networks
Also we have integrated our "Engagement & Wedding Rings" catalogue from Jason Withers into this app. You can request quotes through the "Enquire by email" function of the app. One of our expert jewellery consultants will then respond to the enquiry and assist you with your query.
- choose metric or imperial units
- choose diameter or circumference
- use visual guides for more precise measuring
- supports sizes of the USA, Australia, United Kingdom, Europe, Japan and China
- easily share your ring size on social networks
Also we have integrated our "Engagement & Wedding Rings" catalogue from Jason Withers into this app. You can request quotes through the "Enquire by email" function of the app. One of our expert jewellery consultants will then respond to the enquiry and assist you with your query.
Ring Sizer - handy utility and "Engagement & Wedding Rings" catalogue
Updated on
Aug 3, 2026
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesabout how developers declare sharing
- This app may collect these data typesLocation, Personal info and 3 others
- Data is encrypted in transit
- Data can’t be deleted
Ratings and reviews
3.86K reviews
Caleb Q
- Flag inappropriate
April 27, 2025
WAY too many ads and sizing is innacurate. Immediately upon opening the app for the first time, I was bombarded by 3 different ads, the first a pop up, then the 2 others just on the screen taking up 50% of the screen space. Move over to other tabs, more pop up ads. Won't even show you the ring size without a mandatory 60 second ad first, then come to find the sizer isn't even accurate. Tested it with an 8 1/2 sized ring I had, it said it was a 9 3/4. Do not bother with this app.
42 people found this review helpful
Luca Michalak
- Flag inappropriate
August 21, 2026
I'll watch ads for a good service, but the finger sizer was totally inaccurate. It said I was a 9 1/4 and about 19mm. I measured with a tape measure and I was 57mm and that translates to roughly an 8, which sounds more like me. I can appreciate user error, but the mm conversion was wrong and unhelpful.
Farhat Kazmi
- Flag inappropriate
November 5, 2022
Very good and useful app. Perfect for common people to work out easily and just by using smartphone within 2 minutes from installing the app to finding the right size without any pop ups or adds,weldone. I have a metal measurement tool for rings but its hard to find at times. I could not believe my eyes reading some bad reviews, a free app,accurate measurement, quick downloads,no adds ,no pop ups, low usage of mbs, what else needed to give five stars?
106 people found this review helpful
Uniqo Lab.
November 13, 2022
Thank you very much for your review and support!
