Comparison

Ring Sizer vs Ring Sizer

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 at home using your finger or an existing ring. Get results in multiple international sizing systems instantly. Save your measurements for future reference.

Highlights
  • Measure with finger
  • Measure with existing ring
  • Multiple size systems
  • Screen-calibrated accuracy
  • Save and compare measurements
Features
Read full description

Find your ring size in seconds — no trip to the jeweler needed. MEASURE WITH YOUR FINGER Place your finger on the screen and adjust the guide to estimate your size. Great when you don't have a ring to compare. MEASURE WITH A RING Place a ring you already own on the screen and match the circle to the inside edge. The most accurate way to find your size at home. EVERY SIZE SYSTEM YOU NEED See your result in US/CA, UK, JP, diameter (mm & inch), and circumference (mm) — all at once, no switching. SCREEN-CALIBRATED ACCURACY Auto-detects your iPhone model for precise on-screen measurements. SAVE & COMPARE Label and save measurements for yourself, a partner, or family. Come back anytime to check. Free. No ads. No account required.

About

Ring Sizer

Measure your finger or an existing ring accurately on your iPhone. Get your ring size in multiple international systems, including diameter and circumference. No printing or extra tools needed.

Highlights
  • Measure existing rings on screen
  • Measure finger without a ring
  • US, UK, EU, and JP sizing
  • View diameter and circumference
  • No printing or extra tools required
  • Quick and simple measurement
Features
Read full description

Find your ring size right on your iPhone. Measure an existing ring on screen or measure your finger without a ring, then get your diameter, circumference, and ring size in US, UK, EU, and JP sizing systems. No printing, paper size charts, account, or extra tools required. Whether you're buying a ring, choosing a gift, or helping a customer find the right size, you can get the measurements you need in seconds. IDEAL FOR • Finding your ring size before buying jewelry online • Measuring an existing ring that already fits • Measuring your finger when you don't have a ring • Choosing a ring size for a gift, engagement, or wedding • Helping customers compare ring sizes across different sizing systems KEY FEATURES ◆ MEASURE AN EXISTING RING Place a ring on your iPhone screen and adjust the on-screen guide to match its inner edge. Get its diameter, circumference, and corresponding ring size. ◆ NO RING? MEASURE YOUR FINGER Don't have a ring to measure? Use the finger measurement flow to find your size without an existing ring or a printed size chart. ◆ US, UK, EU & JP RING SIZES See your result in US, UK, EU, and JP sizing systems, making it easier to shop from jewelers and stores that use different size standards. ◆ DIAMETER & CIRCUMFERENCE Get more than a ring size. View the measured diameter and circumference to help compare sizes and check jewelry measurements. ◆ NO PRINTING OR EXTRA TOOLS Measure with your iPhone without printing a ring sizer or using a ruler, measuring tape, or other equipment. ◆ QUICK & SIMPLE Open the app, choose how you want to measure, and get your result in seconds. No account or lengthy setup required. FREQUENTLY ASKED QUESTIONS How can I find my ring size with my iPhone? You can measure an existing ring directly on your iPhone screen or use the finger measurement flow if you don't have a ring. Can I measure a ring I already own? Yes. Place a ring that fits you on the screen and adjust the guide to its inner edge to determine its measurements and size. How can I find my ring size without a ring? Use the finger measurement flow. It lets you estimate your ring size without an existing ring or a printed ring sizer. Which ring size systems are supported? The app shows ring sizes in US, UK, EU, and JP systems, along with diameter and circumference. Can I use it when buying a ring as a gift? Yes. If you have access to a ring that fits the person, you can measure it on your iPhone and use the result when comparing ring sizes. Is this useful for jewelers and jewelry sellers? Yes. Jewelers and sellers can use it as a quick way to measure rings and compare sizes across US, UK, EU, and JP sizing systems. SUBSCRIPTION INFORMATION Payment will be charged to your iTunes Account at confirmation of purchase. Your subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. The renewal cost depends on the selected subscription plan. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Support Address: support@getringsize.app Privacy Policy: https://getringsize.app/pp Terms of Use: https://getringsize.app/tou

Screenshots

Ring Sizer4 screens
Ring Sizer4 screens

Verdict

The call

The clearest difference is rating: Ring Sizer at 4.9 against Ring Sizer's 4.4. Ring Sizer also leads on in-app purchases (none vs 5). Ring Sizer's advantage is update cadence (fortnightly vs every 3 months). On price, ratings volume, ads 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 sells 5 in-app purchases, starting at $5.99 per 7 days. Ring Sizer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ring Sizer holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 10 and 8 respectively.

UpkeepUpdate frequency

Ring Sizer ships an update every 3 months, Ring Sizer fortnightly. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.

Scorecard4 real differences · 6 level
Ring Sizer versus Ring Sizer: the parameters behind the verdict, then further details
ParameterRing SizerRing Sizer
PriceFreeFree
Rating4.9 (10 ratings) — better4.4 (8 ratings)
Positive reviews100.0% of reviews—
Number of ratings10 — better8
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size4 MB52 MB
Age rating4+4+
Developer100 FactoriesDesidari Holding Ltd.

Customer experience

Ring Sizer

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ring Sizer

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

Ring Sizer

No in-app purchases

5 purchases

Ring Sizer

Subscriptions5
  • Ring Sizer Pro - Weekly7 Days trial$5.997 Days
  • Ring Sizer Weekly3 Days trial$7.997 Days
  • Ring Sizer Monthly$19.991 Month
Show 2 more
  • Ring Sizer Annual$24.991 Year
  • Ring Sizer Yearly$49.991 Year

Questions

Is Ring Sizer free?
Ring Sizer is free to download, with no in-app purchases.
Is Ring Sizer free?
Ring Sizer is free to download, with in-app purchases available.
Which has better reviews, Ring Sizer or Ring Sizer?
Ring Sizer is rated higher. Ring Sizer averages 4.9 out of 5 from 10 ratings, while Ring Sizer averages 4.4 from 8 ratings.
Do Ring Sizer or Ring Sizer have ads?
Neither Ring Sizer nor Ring Sizer shows ads.
Which is updated more often, Ring Sizer or Ring Sizer?
Ring Sizer ships an update every 3 months, and Ring Sizer fortnightly. Most recently, Ring Sizer was updated on November 9, 2026 and Ring Sizer on November 13, 2026.

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