Ring Sizer vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ring Sizer
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Find your ring size in 30 seconds – right on your iPhone screen. No plastic sizer, no trip to the jeweller. TWO WAYS TO MEASURE • I have a ring: lay a ring that fits on the screen and grow the gold circle until it exactly fills the hole. The circle is drawn at true physical size, so its diameter is your ring size. • Measure my finger: wrap a paper strip around your finger, mark the overlap, lay it on the on-screen ruler and drag the marker to your mark. EVERY SIZE SYSTEM Your result in US & Canada, UK & Australia, Europe (ISO), diameter in mm, Japan & China, Italy, Spain & Switzerland and France – plus a complete size chart from US 3 to 13. PERFECT FOR SURPRISES Planning a proposal or a gift? Measure one of their rings secretly and save it in My Sizes until the big day. ACCURATE ON EVERY IPHONE The app knows the exact screen size of every iPhone model. For a new model or a thick screen protector, calibrate once with any bank card in 20 seconds. PRO Unlimited saved sizes for the whole family and every country's size system. Choose weekly, monthly or yearly (with a 3-day free trial), or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Tips: measure in the afternoon at room temperature, and go half a size up for wide bands. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ring Sizer
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Estimate your ring size with your iPhone camera and a standard-sized card. Measure an existing ring or a finger, check the detected edges, and compare sizes across international charts. MEASURE WITH A PHOTO Place a ring on or beside an 85.60 × 53.98 mm card on a flat surface. For fingers, place the card above a relaxed, spread-out hand. Use the level guide, take a photo, or choose an existing picture. The app uses the card as a scale reference and corrects perspective in the card’s plane. CHECK THE FIT Review the card corners and ring’s inner edge with a magnifying view. Move the ring circle’s center or radius to refine the result. For fingers, slide the measurement along the detected finger to check a wider section or knuckle. CONVERT RING SIZES Compare 15 sizing systems, including US/Canada, UK/Australia, European circumference, Japan, Hong Kong, mainland China, Taiwan, India, Brazil, South Korea, Argentina and Chile. Choose your country, preferred size system, and millimeters or inches. Published charts vary, so check your jeweler’s chart before ordering. KEEP YOUR MEASUREMENTS Save results, photos and adjustments in History. Reopen a measurement to review it, add a note, or compare sizes. Your measurement folders are also available in the Files app. Delete one measurement or clear them all in Settings. ON-DEVICE PROCESSING Measurement photos are processed on your iPhone. No account, advertising or tracking is required. The app does not upload measurement photos to a server. iOS backups and files you choose to share are controlled by you. BEFORE YOU ORDER Results are estimates, not a guaranteed fit. Lighting, camera angle, object height and card placement can affect accuracy. Finger circumference is estimated from visible width; fingers are not perfect circles. Scan a few times and confirm with a physical ring sizer or jeweler before purchasing. Terms of Use: https://www.x-tech.io/apps/ringsizer/terms Privacy Policy: https://www.x-tech.io/apps/ringsizer/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Ring Sizer at none against Ring Sizer's 4. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Ring Sizer sells 4 in-app purchases, starting at $2.99 per 7 days. Ring Sizer asks for nothing beyond the download.
| Parameter | Ring Sizer | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 9 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Heinz Meier | Xanthous Tech LLC |
In-app purchases
Ring Sizer
- Pro Weekly$2.997 Days
- Pro Monthly$3.991 Month
- Ring Sizer Pro Yearly3 Days trial$12.991 Year
- Ring Sizer Pro Lifetime$17.99
Ring Sizer
No in-app purchases









