SizeMyRing vs True Ring Size

Find any ring size in under two minutes — no jeweler, no guesswork. SizeMyRing turns your iPhone into a precise ring-sizing instrument. Measure four ways, get every international size at once, and save it forever. MEASURE HOW YOU LIKE • Ring on screen — lay a ring on the display and match the glowing circle to its inner edge. • Finger on screen — set two bars to the width of your finger. • Camera — photograph a ring or hand next to any bank card for scale. • String or paper — the classic wrap-and-measure, guided step by step. EVERY STANDARD, INSTANTLY See US/Canada, UK/Australia, EU (ISO), Japan/China and Swiss sizes together, plus exact inner diameter and circumference in millimetres. A built-in converter and full size chart are included. PERFECT FOR GIFTS Gift Mode measures a partner's ring discreetly in about 60 seconds — ideal for engagement rings. Save sizes for the whole family so you're ready for every birthday and anniversary. ACCURATE & PRIVATE Calibrate the screen with any standard payment card to make on-screen measurement jeweler-grade. Everything is measured and stored on your device — no account, and photos never leave your iPhone. SIZEMYRING PREMIUM Unlock unlimited measurements, every tool, unlimited saved people, PDF chart export and jeweler-ready sharing. Choose a weekly plan with a 3-day free trial, an annual plan, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://emeraldapps.io/sizemyring/terms Privacy Policy: https://emeraldapps.io/sizemyring/privacy

Find your ring size in seconds — no physical sizer needed. True Ring Size turns your phone into an accurate ring sizer that works fully offline. Two ways to measure: • Ring on screen — place a ring you already own on the display and resize the circle until it matches. • Finger on screen — line up the guides to your finger and read the size instantly. Calibrate once with any bank card for real-millimeter accuracy, then convert between US, UK, EU, Japan, China and Russia sizing — by diameter or circumference, in mm or inches. Why True Ring Size: • 100% offline — no internet permission, nothing leaves your phone • Free forever — no subscription, no in-app purchases • No ads, ever • No account, no tracking, no data collection • Save sizes for the whole family — perfect for surprise gifts and engagement rings • Full conversion chart for every country system Whether you are buying an engagement ring, a wedding band, or a gift, True Ring Size helps you order the right size online with confidence. Note: on-screen measuring depends on your screen; calibrate with a card and measure twice for best results.