Comparison

Ring Sizer 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

Easily determine your ring size using your finger or an existing ring. Supports various international sizing systems to help you avoid ordering the wrong size. Measurement results are recommendations and should be verified before purchase.

Highlights
  • Measure finger size
  • Measure existing ring size
  • Supports international sizing systems (EU, US, UK)
  • Quick and simple to use
  • Reduces ordering wrong ring sizes
Features
Read full description

- Find your ring size from a finger or an existing ring - Supports multiple international size systems (EU, US, UK and more) - Quick and simple to use - Helps reduce ordering the wrong ring size - Measurement results are recommendations. Please verify final size before purchase Subscription required: A paid auto-renewable subscription is required to access all features. Terms of Use (EULA): https://ringsizer.wotaso.com/terms?locale=en-us

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 Sizer4 screens
Ring Sizer & Ruler4 screens

Verdict

The call

Ring Sizer and Ring Sizer & Ruler are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ring Sizer sells 2 in-app purchases, starting at $9.99 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

Ring Sizer ships an update every 3 months, Ring Sizer & Ruler every 2 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Ring Sizer versus Ring Sizer & Ruler: the parameters behind the verdict, then further details
ParameterRing SizerRing Sizer & Ruler
PriceFreeFree
Rating2.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.1 — better15.6
Further details — not scored
Size56 MB46 MB
Age rating4+4+
DeveloperWotaso GmbHVAST FLOW, TOO

In-app purchases

2 purchases

Ring Sizer

Subscriptions1
  • Ring Sizer Pro Weekly$9.997 Days
One-time1
  • Ring Sizer Pro Lifetime$19.99
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 free?
Ring Sizer 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 or Ring Sizer & Ruler have ads?
Neither Ring Sizer nor Ring Sizer & Ruler shows ads.
Which is updated more often, Ring Sizer or Ring Sizer & Ruler?
Ring Sizer ships an update every 3 months, and Ring Sizer & Ruler every 2 months. Most recently, Ring Sizer was updated on October 25, 2026 and Ring Sizer & Ruler on October 28, 2026.

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