LoopSize vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LoopSize
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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
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.
- On-screen guide for measurement
- Supports EU, US, UK, JP sizing
- Fine-tune for accuracy
- Save ring sizes
- Intuitive interface
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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
Verdict
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
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.
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.
| Parameter | LoopSize | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Adriano Souza Costa | Philemon Combes |
In-app purchases
LoopSize
- Weekly3 Days trial$0.997 Days
- Monthly$0.991 Month
- Annual7 Days trial$24.991 Year
- Lifetime$24.99
Ring Sizer
- Ring Sizer weekly3 Days trial$4.997 Days
- Ring Sizer yearly3 Days trial$22.991 Year





