Comparison

LoopSize 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

LoopSize

Features
Read full description

Find the right ring size before you buy online, choose a gift, travel, or help a jewelry customer. LoopSize is a precise ring size converter and measurement tool for shoppers, gift buyers, jewelers, and anyone who needs to compare ring sizes across countries. Measure a ring or finger by diameter or circumference, then instantly see matching sizes in the most common international standards. Use LoopSize when you want to: • Check a ring size before ordering from an online store. • Convert ring sizes between countries while shopping abroad. • Choose a gift ring with more confidence. • Help jewelry customers compare local and international sizes. • Record finger and ring measurements for future purchases. • Share a clean PDF with a store, customer, partner, or family member. • Keep diameter and circumference visible for more precise decisions. How it works: 1. Measure the ring or finger using diameter or circumference. 2. LoopSize converts the measurement into equivalent ring sizes. 3. Save the result, review it later, or share it as a PDF. Supported standards: BR, US, UK, EU/ISO, JP, CN, and IN. LoopSize focuses on the measurement behind the size. Instead of guessing from a chart, you can work from the actual diameter or circumference and compare results across multiple standards in one place. This is useful for engagement rings, wedding bands, fashion rings, adjustments, resizing conversations, and repeat purchases. For shoppers, LoopSize helps reduce confusion when product pages use different ring sizing systems. For gifts, it gives you a simple way to save and compare possible sizes. For jewelers, it creates a faster workflow for checking measurements, explaining conversions, and sending results to customers. Pro features: • Branded PDFs help jewelers send professional measurement summaries to customers. • iCloud sync keeps measurements and preferences available across devices. • Measurement history helps with repeat customers, future purchases, and follow-up fittings. Privacy Policy: https://adrianosouzacosta.com.br/apps/loopsize/privacy-policy Terms of Use: https://adrianosouzacosta.com.br/apps/loopsize/terms-of-use

About

Ring Sizer

Easily and accurately measure your ring size using your smartphone. Ideal for online jewelry purchases or verifying existing ring dimensions. Offers multiple sizing systems and a clean interface.

Highlights
  • On-screen guide for measurement
  • Supports EU, US, UK, JP sizing
  • Fine-tune for accuracy
  • Save ring sizes
  • Intuitive interface
Features
Read full description

RingSizer helps you measure your ring size easily and accurately using your phone. Perfect for buying rings online or checking an existing ring size. Simple, fast, and reliable. • Measure ring size using an on-screen guide • Supports multiple sizing systems (EU, US, UK, JP) • Fine-tune measurements for accuracy • Save your ring size for later • Clean and intuitive interface RingSizer is ideal if you: • Buy rings online • Want to know your exact ring size • Need to convert ring sizes between systems Accuracy depends on correct alignment and user input. Terms of use : https://philemoncombes.com/ringsizer/terms.html Privacy policy : https://philemoncombes.com/ringsizer/privacy.html

Screenshots

LoopSize4 screens
Ring Sizer4 screens

Verdict

The call

The clearest difference is update cadence: Ring Sizer at every 2 weeks against LoopSize's every 3 months. Ring Sizer also leads on iOS requirement (13.0 vs 18.0). 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. LoopSize sells 4 in-app purchases, starting at $0.99 per 7 days and Ring Sizer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

LoopSize ships an update every 3 months, Ring Sizer every 2 weeks. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
LoopSize versus Ring Sizer: the parameters behind the verdict, then further details
ParameterLoopSizeRing Sizer
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size22 MB40 MB
Age rating4+4+
DeveloperAdriano Souza CostaPhilemon Combes

In-app purchases

4 purchases

LoopSize

Subscriptions3
  • Weekly3 Days trial$0.997 Days
  • Monthly$0.991 Month
  • Annual7 Days trial$24.991 Year
One-time1
  • Lifetime$24.99
2 purchases

Ring Sizer

Subscriptions2
  • Ring Sizer weekly3 Days trial$4.997 Days
  • Ring Sizer yearly3 Days trial$22.991 Year

Questions

Is LoopSize free?
LoopSize 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 LoopSize or Ring Sizer have ads?
Neither LoopSize nor Ring Sizer shows ads.
Which is updated more often, LoopSize or Ring Sizer?
LoopSize ships an update every 3 months, and Ring Sizer every 2 weeks. Most recently, LoopSize was updated on September 13, 2026 and Ring Sizer on September 10, 2026.

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