Comparison

RingMeter vs Ring Sizer

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

RingMeter

Read full description

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

About

Ring Sizer

Features
Read full description

Ring Sizer is a simple on-screen tool to find your ring size at home. Place a ring on the screen and resize the guide until it matches the inner edge, or measure your finger with the stencil and side slider. Ring Sizer also includes a real centimetre and inch ruler. Get clear US, UK, and EU sizes, save measurements on your device, and calibrate with a bank card for better accuracy. This app uses the standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RingMeter4 screens
Ring Sizer4 screens

Verdict

The call

The clearest difference is in-app purchases: Ring Sizer at none against RingMeter's 4. Ring Sizer also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. RingMeter sells 4 in-app purchases, starting at $1.99 per 7 days. Ring Sizer asks for nothing beyond the download.

UpkeepUpdate frequency

RingMeter ships an update every 10 days, Ring Sizer every 2 weeks. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

Scorecard2 real differences ยท 4 level
RingMeter versus Ring Sizer: the parameters behind the verdict, then further details
ParameterRingMeterRing Sizer
PriceFreeFree
Update frequencyEvery 10 days โ€” betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS17.015.1 โ€” better
Further details โ€” not scored
Size2 MB49 MB
Age rating4+4+
DeveloperZHENGQIAO JIANGYaroslav Trofimov

In-app purchases

4 purchases

RingMeter

Subscriptions3
  • Weekly$1.997 Days
  • Monthly$4.991 Month
  • Yearly$29.991 Year
One-time1
  • Lifetime$79.99
None

Ring Sizer

No in-app purchases

Questions

Is RingMeter free?
RingMeter is free to download, with in-app purchases available.
Is Ring Sizer free?
Ring Sizer is free to download, with no in-app purchases.
Do RingMeter or Ring Sizer have ads?
Neither RingMeter nor Ring Sizer shows ads.
Which is updated more often, RingMeter or Ring Sizer?
RingMeter ships an update every 10 days, and Ring Sizer every 2 weeks. Most recently, RingMeter was updated on September 11, 2026 and Ring Sizer on September 20, 2026.

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