Comparison

RingMeter vs Ring Sizer & Ruler

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

Head to head
About

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

About

Ring Sizer & Ruler

Features
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Mesurix finds your ring size right on your screen. No plastic sizers, no printable guesswork charts, no waiting for a kit in the mail โ€” measure a ring or a finger in under a minute and get the size in every major standard. RING SIZER โ€” TWO WAYS TO MEASURE โ€ข Place a ring: lay any well-fitting ring flat on the screen and scale the circle until it matches the inside edge. The most accurate at-home method. โ€ข Measure a finger: rest your finger on the screen and fit the circle to the widest part of the base, just past the knuckle. โ€ข Fine-tune in 0.1 mm steps โ€” one full ring size is only about 0.8 mm, so precision is everything. โ€ข Between sizes? Mesurix tells you which one to choose, so the ring always passes the knuckle. EVERY SIZE STANDARD AT ONCE โ€ข Instant conversion chart: US/CA, UK/AU, EU/ISO millimetres and Japan โ€” side by side. โ€ข Pick your preferred standard in settings; switch anytime. โ€ข See the exact inner diameter in mm behind every size. ON-SCREEN RULER โ€ข A real calibrated ruler in mm, cm and inches, with a draggable guide line. โ€ข Calibrate once for your exact display โ€” re-calibrate anytime for any device. โ€ข Copy the measured value with one tap. BUBBLE LEVEL โ€ข Surface mode: lay the phone flat and level anything with a live x/y bubble. โ€ข Edge mode: rest the phone on its edge and read the angle in degrees โ€” hang shelves and frames straight. โ€ข Set zero on any known-flat surface to cancel sensor bias. SAVE, SHARE, PRINT โ€ข Save sizes โ€” yours and the people you choose gifts for. โ€ข Share a size in seconds when you order a ring online or at the jeweler. โ€ข Print a paper ring sizer to double-check before a lifetime moment โ€” engagement, wedding, anniversary. PRIVATE BY DESIGN Mesurix works entirely on your device. No account, no sign-up โ€” your measurements stay with you. Whether you are choosing an engagement ring, ordering jewelry online, sizing a gift without spoiling the surprise, hanging a shelf straight, or just need a quick ruler in your pocket โ€” Mesurix gives you the right measurement the first time. By using this app, you agree to the Apple Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RingMeter4 screens
Ring Sizer & Ruler4 screens

Verdict

The call

The clearest difference is update cadence: RingMeter at every 10 days against Ring Sizer & Ruler's every 2 months. Ring Sizer & Ruler's advantage is iOS requirement (15.6 vs 17.0). 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

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 and Ring Sizer & Ruler sells 4 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RingMeter ships an update every 10 days, Ring Sizer & Ruler every 2 months. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

Scorecard2 real differences ยท 4 level
RingMeter versus Ring Sizer & Ruler: the parameters behind the verdict, then further details
ParameterRingMeterRing Sizer & Ruler
PriceFreeFree
Update frequencyEvery 10 days โ€” betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS17.015.6 โ€” better
Further details โ€” not scored
Size2 MB46 MB
Age rating4+4+
DeveloperZHENGQIAO JIANGVAST FLOW, TOO

In-app purchases

4 purchases

RingMeter

Subscriptions3
  • Weekly$1.997 Days
  • Monthly$4.991 Month
  • Yearly$29.991 Year
One-time1
  • Lifetime$79.99
4 purchases

Ring Sizer & Ruler

Subscriptions2
  • Weekly | Mesurix Pro$9.997 Days
  • Yearly | Mesurix Pro$39.991 Year
One-time2
  • Lifetime Access$14.99
  • Mesurix Pro Lifetime$29.99

Questions

Is RingMeter free?
RingMeter is free to download, with in-app purchases available.
Is Ring Sizer & Ruler free?
Ring Sizer & Ruler is free to download, with in-app purchases available.
Do RingMeter or Ring Sizer & Ruler have ads?
Neither RingMeter nor Ring Sizer & Ruler shows ads.
Which is updated more often, RingMeter or Ring Sizer & Ruler?
RingMeter ships an update every 10 days, and Ring Sizer & Ruler every 2 months. Most recently, RingMeter was updated on September 11, 2026 and Ring Sizer & Ruler on September 8, 2026.

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