---
title: "Ring Sizer Shopify App Profile"
description: "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."
canonical_url: "https://shoplist.co/shopify-apps/ringsizer"
markdown_url: "https://shoplist.co/shopify-apps/ringsizer.md"
last_updated: "2026-10-14"
entity_type: "shopify_app"
slug: "ringsizer"
source: "public Shopify app profile allowlist"
---

# Ring Sizer Shopify App Profile

> 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.

## Quick answer
Ring Sizer has 0 detected stores in Shoplist. This Markdown profile displays 0 public brand examples; it is not a complete customer list.

## Key facts
- Name: Ring Sizer
- Monitoring status: Storefront detection limited
- Developer: R11N Ventures GmbH
- Developer profile: https://shoplist.co/app-developers/r11n-ventures-gmbh
- Shopify App Store URL: https://apps.shopify.com/ringsizer
- Website: https://ringsizer.app
- Launch date: April 21, 2025
- Shoplist category: Shipping & Fulfillment
- Rating: 5
- Review count: 9
- Free plan signal: Yes
- Free trial signal: Yes

## Pricing summary
Free: Free; Starter: $9/month; Pro: $29/month; Scale: $99/month

Shoplist has not yet found reliable public storefront evidence connecting a Shopify store to this app. This does not mean the app has no users. Some apps are new, admin-only, server-side, theme-independent, or otherwise difficult to detect from public storefront signals.


## Public callouts
- 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
## Shopify App Store categories
- Product display - Other

## Data note
Profile updated: October 14, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-10-30 16:08:05.082012\+00
Detection metrics refreshed: 2026-10-30 14:53:23.662062\+00
Public app evidence date: 2026-10-14 01:35:05.335865\+00
This generated Markdown profile intentionally exposes only public, stable app-profile fields and a small public app-stack sample from Shoplist. It excludes private contact data, people data, internal scores, crawl provenance, full datasets, and unstable operational fields.

## Related links
- [HTML app profile](https://shoplist.co/shopify-apps/ringsizer)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)