RingMeter: Ring Size Finder

For online jewelry shoppers who need to know their exact ring size before buying.
For partners planning to propose who want to measure secretly without asking.
For gift buyers who can't borrow the recipient's ring without giving it away.

RingMeter is the ring sizer that just works.

→ Place any ring flat on the screen and align the on-screen circle to its inner edge to read the exact size
→ Get instant readings in US, UK, EU, Japan, China, Australia, and India sizing standards at the same time
→ Measure your finger directly with the on-screen ruler when you don't have a reference ring on hand
→ Save sizes for everyone — partner, parents, siblings, friends — and never guess again when buying gifts
→ Calibrate accuracy with a credit card or coin using the international ISO/IEC 7810 standard

→ No camera permission. No photo access. No location. No microphone. Nothing.
→ No account. No login. No data ever leaves your iPhone.
→ No advertisements. No third-party SDKs. No analytics.

→ Long press a profile to edit, swipe to delete, tap + to add a new family member
→ Switch between diameter and circumference display modes anytime
→ Choose your default sizing standard so the size you care about always shows first
→ Re-calibrate the screen anytime if you switch devices or display zoom settings

Built for iOS 17. 100% offline. No data collection. No ads.
3-day free trial included.

Terms of Use: https://taxlite.net/ring_meter/terms.html
Privacy Policy: https://taxlite.net/ring_meter/privacy.html