Ring Sizer vs Anella
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ring Sizer
Accurately measure ring and finger sizes using your phone's camera or on-screen tools. Virtually try on rings from a curated gallery with AI-powered photorealism. Save measurements and convert between international sizing standards.
- Measure rings and fingers on-screen
- Camera scanning for hands-free sizing
- AI virtual ring try-on
- Curated ring gallery with filters
- International size conversion
- Sizing vault for saved measurements
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Ring Sizer makes finding your perfect ring size fast, accurate, and fun, whether you're shopping for an engagement ring, wedding band, or a gift. MEASURE ANY RING OR FINGER • Place a ring on your screen and match the adjustable circle, or use two-point tap for precision • Measure your finger with the on-screen gauge — just slide to fit • Use your camera to scan a ring or finger for hands-free sizing • Auto-calibrated to your device's exact screen PPI for reliable results BROWSE A CURATED RING GALLERY • Explore 30 beautifully crafted rings in gold, rose gold, platinum, silver, and more • Filter by metal type or gemstone, diamond, sapphire, ruby, emerald, morganite, and others • View each ring up close with detailed descriptions AI VIRTUAL TRY-ON • Take a photo of your hand and see any ring from the gallery on your finger • Powered by AI image generation for photorealistic results • The easiest way to visualize a ring before you buy YOUR SIZING VAULT • Save every measurement with date, method, and notes • Compare sizes side by side to track changes over time • Convert instantly between US, UK, EU, JP, CN, and RU ring sizes BUILT FOR ACCURACY • Automatic screen calibration with known device PPI data • Fine-tune calibration manually with a coin or credit card • Confidence indicator shows how reliable each measurement is • Ring width adjustment recommends sizing up for wider bands Ring Sizer is the only ring size app that combines precise measurement tools, an international size converter, a ring gallery, and AI-powered virtual try-on.
Anella
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Lay a ring on the screen. Match the circle. Read your size. Anella turns your iPhone into a ring sizer. There is no camera, no account and no permission of any kind to grant — the measuring surface is the screen itself. MEASURED, NOT GUESSED Anella knows how many pixels your iPhone puts in a millimeter, so the gold circle you match is a real physical size. Every reading shows the millimeters beside the size, so you can always check the number the size came from. EVERY STANDARD AT ONCE US, UK, EU and Japanese sizes, side by side. The full conversion chart is free forever and searchable by any column. HONEST WHEN YOU ARE BETWEEN SIZES When a ring falls between two sizes, Anella says so: "between US 6 and 6½ — jewelers recommend sizing up." It never rounds quietly to look more precise than it is. CHECK IT AGAINST A BANK CARD Every bank card in the world is the same size (85.60 × 53.98 mm). Lay one across the two lines on screen, match its edges, and Anella calibrates itself to your exact display. NO RING TO HAND? MEASURE THE FINGER Two calipers you open around your finger, with the guidance to get it right. It is an estimate, and Anella says so on the result: a ring that already fits is always more accurate. SAVE SIZES WITH NAMES "Anna — 16.9 mm · US 6½". Months later at a jeweler's counter you will still know whose ring it was, and whether it came from a ring or a finger. ONE PURCHASE, YOURS FOREVER Try Anella with one complete measurement, free, and keep the size chart free forever. One payment then unlocks unlimited measuring, saved sizes, finger mode and all four standards at once. No subscription, no account, no renewal — and Family Sharing is on, so your family gets it too. PRIVATE BY DESIGN There is nothing to collect. No camera, no location, no sign-up, no ads, no tracking. Your saved sizes stay on your iPhone. Requires iPhone with iOS 17 or later. Privacy Policy: https://transformly.app/anella/privacy Terms of Use: https://transformly.app/anella/terms Support: afigaliyevdev@gmail.com
Screenshots
Verdict
Ring Sizer and Anella are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 2 in-app purchases, starting at $3.99 per 7 days and Anella sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Ring Sizer | Anella |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 63 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | APPSURGE | Afig Aliyev |
In-app purchases
Ring Sizer
- Weekly$3.997 Days
- Annual$44.991 Year
Anella
- Anella — every size, forever$4.99









