Ring Sizer vs RingMeter
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Ring Sizer
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The simplest way to find your ring size - no paper, no string, no jeweler required. Place your ring on the screen, adjust the circle, and get your exact size in seconds. One tool, every size standard, zero subscriptions. WORKS TWO WAYS - Place an existing ring on screen to match the size instantly - Measure your finger directly using the on-screen guide EVERY SIZE STANDARD INCLUDED - US / Canada - UK / Australia - Europe / ISO - Japan / China - Millimeters & inches BUILT FOR THE MOMENT - Engagement ring shopping - Wedding band ordering - Jewelry gifts - measure while they sleep - Online ring purchases with no size guide WHY RING SIZER - No subscription - $4.99 once, yours forever - Save your measurements for every finger - Lightweight - under 5MB - Clean, accurate, no bloat HOW IT WORKS 1. Place your ring on the circle on screen 2. Drag the slider until the circle matches your ring 3. Read your size in any international standard 4. Save it - never measure again Whether you're buying an engagement ring or ordering jewelry online, get the size right the first time. No subscriptions. No nonsense. $4.99. https://www.apple.com/legal/internet-services/itunes/dev/stdfla/
RingMeter
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For online jewelry shoppers who need to know their exact ring size before buying. For partners planning to propose who want to measure secretly without asking. For people sorting through inherited or estate jewelry who need to know which ring fits whom. For wide wedding band buyers who need a more accurate fit than standard sizers can give. RingMeter is the ring sizer that just works. โ Place any ring flat on the screen and align the on-screen circle to its inner edge to read the exact size โ Get instant readings in 14 country standards โ US, UK, EU, Japan, China, Australia, India, Canada, Mexico, Italy, Spain, Germany, Russia, Hong Kong, and Brazil โ at the same time โ Wide band? Enter the band width in millimeters and the app applies comfort-fit compensation automatically, so wedding bands and signet rings fit right โ Measure your finger directly with the on-screen ruler when no reference ring is available โ Save sizes for everyone โ partner, parents, siblings, friends โ and never guess again when buying gifts โ Track every ring you own in a private inventory: diameter, finger fit, optional reference photo, and personal notes. Perfect for organizing estate jewelry, coordinating surprise gifts, or running a small jewelry business โ Export a printable PDF paper sizer with reference circles and a measuring strip, for situations where the phone screen can't be used or to mail an exact size to a jeweler โ Calibrate accuracy with a credit card or coin using the international ISO/IEC 7810 standard โ No system permissions required. No camera, no microphone, no location, no contacts. โ No account. No login. No data ever leaves your iPhone. โ No advertisements. No third-party SDKs. No analytics. โ Long press a profile to edit, swipe to delete, tap + to add a new family member or ring โ Switch between diameter and circumference display modes anytime โ Choose your default sizing standard so the size you care about always shows first โ Re-calibrate the screen anytime if you switch devices or display zoom settings Built for iOS 17. 100% offline. No data collection. No ads. 3-day free trial included. Terms of Use: https://taxlite.net/ring_meter/terms.html Privacy Policy: https://taxlite.net/ring_meter/privacy.html
Screenshots
Verdict
The clearest difference is ads: RingMeter at none against Ring Sizer's shown. RingMeter also leads on update cadence (every 10 days vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. Ring Sizer sells 3 one-off in-app purchases and RingMeter sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Ring Sizer ships an update every 2 months, RingMeter every 10 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.
| Parameter | Ring Sizer | RingMeter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 10 days โ better |
| Ads | Yes | No โ better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 23 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Cloud Motion Lab LLC | ZHENGQIAO JIANG |
In-app purchases
Ring Sizer
- RingSizerPremium$4.99
- Lifetime Pro - Special Offer$9.99
- Lifetime$14.99
RingMeter
- Weekly3 Days trial$1.997 Days
- Monthly$4.991 Month
- Yearly$29.991 Year
- Lifetime$79.99








