Green13 Size Chart — a Shopify app by Green13 srl. Last updated: 24 September 2026.
The data controller for the app is Green13 srl, reachable at info@green13.agency.
Green13 Size Chart lets a merchant create size charts in the app and show the right one on each product page, through a theme app block. The block can also include a "Find your size" tool: the shopper enters the length of their foot, or picks the size they wear in another brand, and the tool suggests a size from the merchant's chart.
| Collected | No. The foot length or brand size entered in "Find your size" is used by a script running in the shopper's own browser to pick a size. It is never sent anywhere. |
|---|---|
| Stored | No. Nothing is saved: no database record, no cookie, no local storage. Closing or reloading the page discards the value. |
| Transmitted | No. The size chart and the conversion data are already part of the product page; the tool makes no network requests. |
| Shared with third parties | No. There are no sub-processors, analytics or tracking of any kind. |
| Retention period | None, because nothing is retained. |
The app does not request access to customers, orders or any other protected customer data through the Shopify API.
| Size charts and settings | Stored by Shopify, inside the store itself, as app data attached to the app installation. Shopify deletes them automatically when the app is uninstalled. |
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| Authentication session | Stored by Green13 on its app server, because Shopify requires it to keep the app installed. It contains the store domain and an access token, and no customer information. It is deleted when the app is uninstalled, and in any case when Shopify sends the shop data erasure request. |
| Billing | Subscriptions are handled entirely by Shopify. Green13 does not receive or store payment details. |
The app server is hosted by Fly.io in the European Union (Paris region).
Because no personal data of shoppers is stored, there is nothing to access, correct, export or erase. Requests submitted through Shopify's standard privacy webhooks are answered accordingly. Merchants can write to the address below for any request about their store's data.
If the app ever begins to store data, this page will be updated before that change is released, and the date above will change.
Green13 srl — info@green13.agency