Karat vs Ring Sizer

Find your ring size in under a minute — no printables, no guessing, no trip to the jeweler. Karat turns your iPhone into a precise ring sizer. Place any ring on the screen, match the golden circle to its inside edge, and instantly get your size in US, UK, EU, TR and JP standards — plus the exact diameter in millimeters. PLANNING A SURPRISE PROPOSAL? Borrow one of their rings for 60 seconds. Measure it quietly, save it as "Her size" or "His size", and hand the jeweler an exact number. The secret stays safe — and the ring fits on the first try. HOW IT WORKS 1. Calibrate once — Karat auto-detects your iPhone model for millimeter accuracy (you can verify with any bank card). 2. Place a ring on the screen and match the circle — or measure your finger directly between the guides. 3. Get your size instantly, in every international standard. WHY KARAT • Ring measurement using your existing ring — the most accurate phone-based method • Finger measurement mode when you don't have a ring at hand • Full conversion chart: US · UK · EU · TR · JP · mm • Save unlimited sizes: yours, your partner's, gifts for family • Sizing tips from jewelers: when fingers swell, how wide bands fit, comfort fit vs standard • Works 100% offline. No account. No location. Your data never leaves your phone. ACCURACY YOU CAN TRUST Karat calibrates to your exact screen down to the pixel-per-millimeter. For important purchases like engagement rings, we still recommend confirming with a professional jeweler — Karat gets you the right starting size without leaving home. Your first measurement is free. Unlock unlimited measurements, saved sizes and the full conversion chart with Karat Pro. KARAT PRO SUBSCRIPTION Karat Pro is available as an auto-renewing weekly subscription. The price is shown in the app before purchase. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless it is canceled 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. You can manage and cancel your subscriptions anytime in your App Store account settings after purchase. Privacy Policy: https://usappstudio.com/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Most ring sizer apps use a generic circle on every phone. Screens vary in size, so the number it gives you is a guess. That's why reviews often say, "it said 10, it was 7." This app computes real millimeters from your exact device screen. Lay a ring you already own flat on the glass, size the glowing disc to its inner hole, and read your size. KEY FEATURES - Real millimeters, not screen points: the disc is sized to your device's actual screen, so what you see is the actual size. - Verify accuracy: place a bank card against the screen to confirm the scale in about ten seconds. - Your own size system on every result, free. All nine at once with Pro: US and Canada, UK and Australia, EU and ISO, Japan and Korea, China, India, Germany and the Netherlands, Italy and Spain, Russia. - Accurate results: each reading includes a tolerance band, and the app flags unlikely numbers instead of guessing. - Save one person's sizes free, or every person and finger with Pro, with a measurement log and median reading. - Eight concise guides, all free, cover wide bands, large knuckles, resizing, and daily size fluctuations. WHO IT IS FOR Whether you're buying a ring online, ordering from another country's sizing system, sorting inherited jewelry, deciding whether to resize a band, or discreetly sizing a partner's finger before a proposal, this app gives you a verifiable number. WORKS WITH Wedding bands, engagement rings, signet rings, stacking rings, wide bands, vintage and inherited rings. FREE AND PRO Measuring a ring is free, unlimited, and always will be, and every result shows your own size system plus ISO. The bank-card accuracy check, the tolerance band, all eight guides, and one saved profile are free too. No ads and no account: all your measurements stay on your device. Pro unlocks all nine systems on every result, the no-ring finger method, fit advice for wide bands and large knuckles, the full conversion chart, a printable paper sizer, an on-screen millimeter ruler, a shareable size card, saved sizes for everyone and every finger, and the discreet partner sizing kit. IN-APP PURCHASE Ring Sizer Pro is a one-time purchase, not a subscription. You pay once, nothing renews, and there is nothing to cancel. - Payment is charged to your Apple ID at confirmation of purchase. - The purchase stays on your Apple ID and can be restored on any device from Settings inside the app. - Measuring a ring is free and stays free. Pro is never required to get a size. Terms of Use (EULA): https://abouchfa.com/terms Privacy Policy: https://abouchfa.com/privacy