Shopify jewelry sizing app
A ring sizer built for Shopify product pages.
Ring Sizer Pro helps jewelry merchants reduce size hesitation with guided finger measurement, existing-ring matching, international size output, and automatic handoff to Shopify product options.
What merchants get
- Theme app block: place the CTA near size variants and add-to-cart without editing Liquid.
- Ring product detection: show sizing help on ring products and avoid unrelated catalog pages.
- Variant handoff: map measured sizes to the closest available Shopify product option when possible.
- Merchant analytics: track measurement volume, modes, size results, and matched options.
Why not use a generic size-chart app?
Generic size-chart apps are useful, but ring sizing has product-option and international-size details that apparel-style charts do not handle well.
| Need | Generic size chart | Ring Sizer Pro |
|---|---|---|
| Finger measurement | Usually no | Yes, calibrated on phone |
| Existing-ring matching | Usually no | Yes |
| US, UK, EU, JP output | Sometimes as static chart | Built into the flow |
| Variant auto-select | Often manual | Attempts direct product-option handoff |
| Ring-only CTA visibility | Manual targeting | Catalog-aware include/exclude hints |
Free
$0
- 25 measurements/month
- Default CTA
- Basic analytics
Recommended
Starter
$24/mo
Billed yearly. $29 month-to-month.
- 500 measurements/month
- Theme CTA customization
- Detailed analytics
Growth
$54/mo
Billed yearly. $64 month-to-month.
- 1,500 measurements/month
- Priority support
- Advanced matching controls
Launch faster with setup help.
For serious ring catalogs, charge setup separately: from $199 for theme app block placement, product matching hints, size option aliases, and one verified live product before store-wide rollout.
Install Ring Sizer Pro