SizeCue privacy policy
Updated October 25, 2026.
SizeCue is operated by Xiaoyun. Privacy requests: cxy16@hotmail.com.
Information we use
We access product titles, options and variants to configure footwear size charts. Chart settings and variant mappings are stored with your products in Shopify. We store your shop identifier, authentication sessions and access tokens to connect the app to Shopify. Shopify's authentication session may include an administrator's name, email, account ID, locale and account role.
We do not request customer or order access. Our storefront block does not use analytics cookies, track visitors, collect measurements or send shoppers' personal information to our server. Shopify supplies the selected storefront country to order the chart columns.
How information is used and shared
We use this information to authenticate your store, display and update your chart settings, verify your app subscription through Shopify, and investigate service errors. Hosting providers process the information needed to run the service. We do not sell personal information or use it for advertising.
Retention and deletion
Authentication records are retained while the app is installed and deleted when Shopify delivers an uninstall or shop deletion request. Customer data requests receive an empty result because we hold no customer or order records. We also process Shopify's customer deletion requests.
App-owned chart settings are subject to Shopify's storage and uninstall behavior. Remove a product's preset in the app to stop its chart display before uninstalling. Your underlying products and variants are not deleted by the app.
Your choices
You can change product chart settings in the app or revoke access by uninstalling it from Shopify admin. You can request access to, correction of, or deletion of information we hold about you using the contact above. Your applicable rights depend on your location.