ShopSync is GDPR compliant, we do not store any of your user's data. Also, we ask users before installing the app to consent to data transfers into our United States based servers. We function as a secure pass-through service operating on full 256-bit encryption SSL (TLS 1.1) that connects your store to Mailchimp. We do not use, mine or re-distribute information coming from your store. If your customers ever ask for information regarding GDPR, you would be able to export or erase that information in Mailchimp.