Comparison

Ring Sizer & Ruler 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

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 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/

About

Ring Sizer

Features
Read full description

Ring Sizer is a simple tool for checking ring size directly on your iPhone. Open the app, place a ring on the screen, and adjust the circle with the smooth slider until it matches the inside edge of the ring. The selected size and inner diameter are shown clearly, so you can check the result without searching through conversion tables. The app supports JP, US, EU, and UK size systems. It automatically chooses a default based on your device language and region, and you can change it anytime from the size menu. The slider moves by size steps with subtle haptic feedback, making the measuring experience quick and satisfying. You can also save sizes for your own fingers. Store sizes for the left and right hand, from thumb to little finger, and review them later in the My Fingers tab. Ring Sizer is designed with a calm, feminine beige style that keeps the measuring circle easy to see while still feeling polished. It is perfect for checking rings at home, comparing sizes before shopping, or keeping a personal ring-size note.

Screenshots

Ring Sizer & Ruler4 screens
Ring Sizer4 screens

Verdict

The call

The clearest difference is update cadence: Ring Sizer at every 4 weeks 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. Ring Sizer & Ruler sells 4 in-app purchases, starting at $9.99 per 7 days and Ring Sizer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ring Sizer & Ruler ships an update every 2 months, Ring Sizer every 4 weeks. Both last shipped on September 8, 2026.

Scorecard2 real differences ยท 4 level
Ring Sizer & Ruler versus Ring Sizer: the parameters behind the verdict, then further details
ParameterRing Sizer & RulerRing Sizer
PriceFreeFree
Update frequencyEvery 2 monthsEvery 4 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, Apple Watch โ€” better
Requires iOS15.6 โ€” better17.0
Further details โ€” not scored
Size46 MB62 MB
Age rating4+4+
DeveloperVAST FLOW, TOORomiick LLC

In-app purchases

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
1 purchases

Ring Sizer

One-time1
  • Ring Sizer Pro$9.99

Questions

Is Ring Sizer & Ruler free?
Ring Sizer & Ruler is free to download, with in-app purchases available.
Is Ring Sizer free?
Ring Sizer is free to download, with in-app purchases available.
Do Ring Sizer & Ruler or Ring Sizer have ads?
Neither Ring Sizer & Ruler nor Ring Sizer shows ads.
Which is updated more often, Ring Sizer & Ruler or Ring Sizer?
Ring Sizer & Ruler ships an update every 2 months, and Ring Sizer every 4 weeks. Most recently, Ring Sizer & Ruler was updated on September 8, 2026 and Ring Sizer on September 8, 2026.

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