We have used many apps from the Shopify App store, but this one doesn't even compare to the rest. Our business would not be the same without FetchApp! We sell stock photos at www.looklagoon.com and this app allows us to deliver the download links to our customers instantly upon purchase. The integration with Shopify is absolutely amazing - all you have to do is click "Import Products" and it does all the work for you.
We host our photos elsewhere (some are very large files), and use FetchApp to deliver the links to our customers. We haven't seen any issues at all, and the customer service they provide is fantastic as well.
There are so many excellent features that come with this app - customizable email templates, sales reports, and more. If you are looking for a way to offer digital downloads, FetchApp is definitely the way to go! Highly, highly recommend this app!!! A+++