问题
looking for a consistent unique ID across all iPhones associated with a iTunes account. Seems that the iTunes persistent ID would be ideal, however unable to find out how to retrieve this from within my xCode application.
回答1:
This information isn't available programmatically to an application.
Ask a broader question about what you're trying to accomplish and perhaps someone can offer more help.
来源：https://stackoverflow.com/questions/4620967/is-there-a-way-to-retrieve-itunes-persistent-id-on-iphone