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

Accurately determine your ring size using your phone's screen or a built-in ruler. Supports multiple international sizing standards and allows saving measurements for future use. Ideal for online shoppers and jewelers.

Highlights
  • Measure ring size via diameter or circumference
  • Supports US, UK, EU/ISO, AU, JP, CN, RU sizes
  • Built-in screen ruler for finger measurement
  • Save measurements for multiple users
  • Ad-free experience
Features
Read full description

Sizerly is a simple and precise tool for finding the right ring size using your phone. Whether you already have a ring to measure or need to find your finger size directly, Sizerly offers an intuitive way to get reliable sizing results in seconds. Just place a ring on your screen and adjust the sizing circle, or use the built-in ruler to measure your finger diameter. Sizerly supports all major international sizing standards, so you can shop confidently online or in-store. Key Features: - Measure ring size using diameter or circumference - Includes major size systems: US, UK, EU/ISO, AU, JP, CN, RU - Built-in screen ruler for measuring fingers - Save measurements for future use or multiple users Sizerly is ideal for online shoppers, gift buyers, and jewelers. It’s accurate, easy to use, and designed without ads for a smooth experience. Privacy Policy: https://di-apps-dev.web.app/privacy.html Terms of Use: https://di-apps-dev.web.app/terms.html

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 3.7 against Ring Sizer's 3.3. Ring Sizer's advantage is iOS requirement (16.0 vs 18.0). On price, ratings volume, update cadence and ads 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 2 in-app purchases, starting at $3.99 per 7 days and Ring Sizer sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Ring Sizer holds the better App Store score, 3.7 against 3.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

UpkeepUpdate frequency

Ring Sizer ships an update every 2 weeks, Ring Sizer every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Ring Sizer versus Ring Sizer: the parameters behind the verdict, then further details
ParameterRing SizerRing Sizer
PriceFreeFree
Rating3.3 (3 ratings)3.7 (3 ratings) — better
Number of ratings33
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size10 MB52 MB
Age rating4+4+
DeveloperDziyana DashynevichDesidari Holding Ltd.

Customer experience

Ring Sizer

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

Ring Sizer

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

2 purchases

Ring Sizer

Subscriptions2
  • Weekly Premium$3.997 Days
  • Annual Premium$19.991 Year
4 purchases

Ring Sizer

Subscriptions4
  • Ring Sizer Weekly3 Days trial$7.997 Days
  • Ring Sizer Monthly$19.991 Month
  • Ring Sizer Annual$24.991 Year
Show 1 more
  • Ring Sizer Yearly$49.991 Year

Questions

Is Ring Sizer free?
Ring Sizer is free to download, with in-app purchases available.
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 3.3 out of 5 from 3 ratings, while Ring Sizer averages 3.7 from 3 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 2 weeks, and Ring Sizer every 3 weeks. Most recently, Ring Sizer was updated on October 30, 2026 and Ring Sizer on October 31, 2026.

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