SizeMyRing vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SizeMyRing
Read full descriptionHide full description
Find any ring size in under two minutes โ 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 โข Ring on screen โ lay a ring on the display and match the glowing circle to its inner edge. โข Finger on screen โ set two bars to the width of your finger. โข Camera โ photograph a ring or hand next to any bank card for scale. โข String or paper โ 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 โ 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 โ 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
Ring Sizer
Read full descriptionHide full description
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
Screenshots
Verdict
The clearest difference is iOS requirement: Ring Sizer at 15.0 against SizeMyRing's 26.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. SizeMyRing sells 3 in-app purchases, starting at $2.99 per 7 days and Ring Sizer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | SizeMyRing | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 26.0 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 5 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | EmeraldApps.io | Abdeljalil Bouchfar |
In-app purchases
SizeMyRing
- Weekly3 Days trial$2.997 Days
- Annual$19.991 Year
- Lifetime$29.99
Ring Sizer
- Ring Sizer Pro Lifetime$24.99









