Application Instance (XDEV19206)

Apple allows you to modify an app for download and include a UUID in the download to identify the user downloading it. You create a new UUID for each download and link them in the database to the current logged-in user, and then you can, within a few minutes, simply link the installation to the account on the server. Please make sure the link only works for a limited time (maybe only once). Additionally, you may ask for a verification code.