Comparison

Ring Sizer vs LoopSize

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

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

Screenshots

Ring Sizer4 screens
LoopSize4 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 (16.0 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. Ring Sizer sells 2 in-app purchases, starting at $3.99 per 7 days and LoopSize sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ring Sizer ships an update every 2 weeks, LoopSize every 3 months. The most recent releases landed on June 4, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 7 level
Ring Sizer versus LoopSize: the parameters behind the verdict, then further details
ParameterRing SizerLoopSize
PriceFreeFree
Rating3.3 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size10 MB22 MB
Age rating4+4+
DeveloperDziyana DashynevichAdriano Souza Costa

In-app purchases

2 purchases

Ring Sizer

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

Questions

Is Ring Sizer free?
Ring Sizer is free to download, with in-app purchases available.
Is LoopSize free?
LoopSize is free to download, with in-app purchases available.
Do Ring Sizer or LoopSize have ads?
Neither Ring Sizer nor LoopSize shows ads.
Which is updated more often, Ring Sizer or LoopSize?
Ring Sizer ships an update every 2 weeks, and LoopSize every 3 months. Most recently, Ring Sizer was updated on June 4, 2026 and LoopSize on September 13, 2026.

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