Ring Sizer vs Knuckle

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.

Knuckle turns your screen into a ring sizer. Lay a ring you already own flat on the display, match the gold circle to the inside of the band, and read the size. That is the whole thing. No camera, no printing, no paper strips to cut out, no trip to a jeweler. Before the first measurement you line a bank or ID card up against an outline, once, so Knuckle learns exactly how large a millimetre is on your particular screen. Every reading after that is true to your device. You get the inner diameter in millimetres next to the sizes people actually ask for - US, UK, EU, Japan, Australia, Hong Kong and Italy. Each result carries an honest confidence band instead of one number pretending to be certain. Sizes are worth keeping. Save one under the person it belongs to, note the finger and the hand, and look it up later while you are standing in the shop. Send a clean size card to whoever is buying. Nothing leaves your device. No account, no sign in, and it all works with the network switched off. Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/