Comparison

Ring Sizer & Size Finder vs Ring Sizer & Ruler

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

Head to head
About

Ring Sizer & Size Finder

Easily determine your ring size using your iPhone's screen. Measure existing rings or your finger directly, with support for international sizing standards and a built-in ruler for everyday use.

Highlights
  • Accurate ring sizing by placing rings on screen
  • Finger width measurement for direct sizing
  • International size conversion (US, UK, EU, JP, CN)
  • Built-in ruler for measuring objects
  • No extra tools required
  • Simple and intuitive interface
Features
Read full description

Measure your ring size instantly using your iPhone. No guesswork. No extra tools required. Ring Sizer & Size Finder is an all-in-one tool that helps you accurately determine ring size, measure your finger, and use a built-in ruler directly on your device. Accurate Ring Sizing Place your ring on the screen and match it with the adjustable circle to find the exact size in seconds. Finger Measurement Don’t have a ring? Measure your finger width and calculate the correct ring size quickly and easily. International Size Conversion Supports all major measurement systems: • United States & Canada • United Kingdom & Australia • Europe (ISO) • Japan & China Perfect for shopping jewelry anywhere in the world. Built-in Ruler Tool Measure everyday objects using your screen with support for inches and millimeters. Key Features • Simple and intuitive interface • Fast and accurate results • Multiple sizing methods • Works without physical tools • Supports global size standards Find your perfect fit and shop with confidence.

About

Ring Sizer & Ruler

Features
Read full description

Mesurix finds your ring size right on your screen. No plastic sizers, no printable guesswork charts, no waiting for a kit in the mail — measure a ring or a finger in under a minute and get the size in every major standard. RING SIZER — TWO WAYS TO MEASURE • 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. • Measure a finger: rest your finger on the screen and fit the circle to the widest part of the base, just past the knuckle. • Fine-tune in 0.1 mm steps — one full ring size is only about 0.8 mm, so precision is everything. • Between sizes? Mesurix tells you which one to choose, so the ring always passes the knuckle. EVERY SIZE STANDARD AT ONCE • Instant conversion chart: US/CA, UK/AU, EU/ISO millimetres and Japan — side by side. • Pick your preferred standard in settings; switch anytime. • See the exact inner diameter in mm behind every size. ON-SCREEN RULER • A real calibrated ruler in mm, cm and inches, with a draggable guide line. • Calibrate once for your exact display — re-calibrate anytime for any device. • Copy the measured value with one tap. BUBBLE LEVEL • Surface mode: lay the phone flat and level anything with a live x/y bubble. • Edge mode: rest the phone on its edge and read the angle in degrees — hang shelves and frames straight. • Set zero on any known-flat surface to cancel sensor bias. SAVE, SHARE, PRINT • Save sizes — yours and the people you choose gifts for. • Share a size in seconds when you order a ring online or at the jeweler. • Print a paper ring sizer to double-check before a lifetime moment — engagement, wedding, anniversary. PRIVATE BY DESIGN Mesurix works entirely on your device. No account, no sign-up — 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 — 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

Ring Sizer & Size Finder4 screens
Ring Sizer & Ruler4 screens

Verdict

The call

The clearest difference is update cadence: Ring Sizer & Size Finder at every 2 weeks against Ring Sizer & Ruler's every 2 months. Ring Sizer & Ruler's advantage is iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ring Sizer & Size Finder sells 1 one-off in-app purchase 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

Ring Sizer & Size Finder ships an update every 2 weeks, Ring Sizer & Ruler every 2 months. The most recent releases landed on October 16, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
Ring Sizer & Size Finder versus Ring Sizer & Ruler: the parameters behind the verdict, then further details
ParameterRing Sizer & Size FinderRing Sizer & Ruler
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.6 — better
Further details — not scored
Size9 MB46 MB
Age rating4+4+
DeveloperLimeLime Labs LLCVAST FLOW, TOO

In-app purchases

1 purchases

Ring Sizer & Size Finder

One-time1
  • Ring Sizer Pro$0.99
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 Ring Sizer & Size Finder free?
Ring Sizer & Size Finder 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 Ring Sizer & Size Finder or Ring Sizer & Ruler have ads?
Neither Ring Sizer & Size Finder nor Ring Sizer & Ruler shows ads.
Which is updated more often, Ring Sizer & Size Finder or Ring Sizer & Ruler?
Ring Sizer & Size Finder ships an update every 2 weeks, and Ring Sizer & Ruler every 2 months. Most recently, Ring Sizer & Size Finder was updated on October 16, 2026 and Ring Sizer & Ruler on October 28, 2026.

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