Dead Fly Zone review for Digital Downloads

This app is absolutely worthless and, just like everything else on Shopify, they don't have a clue how to fix anything and I always end up having to go spend money on an app that actually works. This app does not allow you to control when the digital download is sent to your customer, so if you're using this app as a add-on download to a physical product, it won't send it to the customer until the order is fulfilled. We need the download link sent when the order is paid for. Seems logical, right? Yea, not to Shopify. You also cannot edit the email that's sent. Nothing about this app is useful and Shopify gives you the same answer they give every time...."We will send this to our developers to have a look at it". Yea, right.