Glossary

Use the specific term. "Size fitting" alone is not a product name.

Size

Term	What it actually is	Start here
Shoe size recommendation	Foot scan, then an advisory size for one shoe. Public `clientId`. Not on Shopify or WooCommerce as a built-in button.	Recommend a shoe size
Clothing size estimate	Body-range chart compared with a Size Mode digital twin. Result is fit, loose, or tight. Endpoint `POST /api/v1/size-fitting`.	Recommend a clothing size
On-shoe fit heatmap	Not a documented integration.	Do not implement it from the clothing or shoe size pages.
Size Mode	A clothing twin built from measurements or from a named clothing size (XS–3XL). Eligible for a clothing size estimate.	See a garment
Photo Mode	A clothing twin built from a full-body photo. Not eligible for a clothing size estimate.	See a garment
`confidence: "advisory"`	The only confidence the shoe-size API returns. Guidance, not a lock on checkout.	Recommend a shoe size

Term	What it actually is	Start here
Shoe AR try-on	Live camera view of a 3D shoe on the feet.	See a shoe on the foot
Bag AR try-on	Live camera view of a 3D bag on the body. Requires a 3D file.	See a bag on the body
Clothing AI try-on	Still image of a garment on a digital twin.	See a garment
2D to 3D	Turns shoe photos into a GLB and a try-on link. Not a storefront by itself.	Make the assets
Try-on link / viewer URL	The URL of dev.wearfits.com/tryon for one model. What Shopify and WooCommerce store on the product.	See a shoe on the foot

Term	Meaning
API key	Secret from dash.wearfits.com. Sent as `X-API-Key` from your server. Never in shopper-facing JavaScript. Shopify merchants do not create one.
`clientId`	Public store id for the shoe-size widget. Not a secret. Useless until WEARFITS has registered it and your origins.
Origin	`scheme://host[:port]`. `www` and the apex are different. Production is HTTPS.
`status: live`	You can complete the setup from the recipe.
`status: gated`	The steps are real, and WEARFITS has to register or enable the store before go-live.
Dashboard	Account, keys, usage, and invoices at dash.wearfits.com. Not used by the Shopify app.
Reference	API and operator manuals in the sidebar. Read them after a recipe, not instead of one.

Term	Meaning
Shopify app	WEARFITS Try-On inside Shopify Admin. Shoe AR from photos. Apparel only when that access is already on the store. No shoe-size button.
WooCommerce shoes plugin	WEARFITS Shoes Tryon on WordPress.org. Shoe AR. Needs an API key. No shoe-size button.
WooCommerce clothing plugin	Iframe of the clothing fitting room. Earlier stage than the shoes plugin.