We recommend...
OrderlyEmail
It seems as though we've known Bjorn of FORSBERG+two ApS for as long as we've known about Shopify. Known for building solid, highly functional apps with beautiful user interfaces, we're always happy to recommend pretty much any app in the FORSBERG+two ApS stable.
Grapevine has an integration with OrderlyEmail which enables you to drop your surveys into beautifully crafted email templates.
What is OrderlyEmail?
OrderlyEmails is dedicated to optimizing your communication through professionally designed email templates, ensuring consistent brand image across all transactional emails.
How can I find out more?
If this recommendation is enough for you to get started you can install on the link below. Alternatively you can get in touch via their contact page.