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Ring Sizer

Lets your customers find their ring size easily

by R11N Ventures GmbH · Launched: April 2025 · Free plan available.

5.0 (8) on Shopify Used by 73 Shopify stores Built for Shopify

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Remove sizing doubts for your customers to impact your sales and returns

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About Ring Sizer

RingSizer helps your customers find their ideal ring size. Sizing uncertainty is one of the main reasons for cart abandonment and returns for jewelry merchants. Our app adds a “Find My Size” button to product detail pages, allowing your customers to easily measure their fingers or an existing ring directly from their phone. Co-developed with jewelers, we use machine learning for size prediction. Install effortlessly without a developer; it blends seamlessly with your store’s theme and brand. Measure anywhere: Guided measurement of finger or rings using a phone Reliable: Built and calibrated to work across different body types Plug-and-play: Easily integrate RingSizer into your store design International: Built-in conversion and size charts for common scales Size matching: Measurements are automatically matched to closest in-stock sizes Show more Show less

Last verified: July 15, 2026 · Fresh

App details

Developer: R11N Ventures GmbH
Category: Store design
Pricing: Free plan available
Launched: April 2025
Rating: 5.0 (8) on Shopify

Key features

Size chart
International scales (EU, UK, US, IT)
30 measurements
Custom image on start screen
In-stock information

Integrations with:

Checkout, Shopify Admin

4 plans · starts free · 15-day free trial

Free

Free

Starter

$9/month

Pro

$29/month

Scale

$99/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 8 Shopify App Store reviews

Use the arrows to read individual reviews

Great customer service, quick responses and effective in helping

— Maria Frering UK

Super Support von der Jeppe

— gymside

Very good App, very helpful support!

— bestelectronic.de

Great app ! and great customer service

— MONSIO

Excellent App and excellent Customer Service:)

— SILVERWEISS®

Great app, amazing customer service!

— Yoreh

Gostaria muito que tivesse tradução para Português Brazillian

— Piero Joias

Jeppe has done an amazing job with developing this app, it's exactly what we needed to solve the ring sizes issue for our jewelry store. Must try!

— Marea Jewellery

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