My IPOD is already synced to iTunes. My friend just acquired an iPhone and he wants to purchase an app through my iTunes. Can he use my iTunes to install the app to his iPhone without screwing up my IPOD information already on my iTunes?

Question

My IPOD is already synced to iTunes.  My friend just acquired an iPhone and he wants to purchase an app through my iTunes.  Can he use my iTunes to install the app to his iPhone without screwing up my IPOD information already on my iTunes?  Also, how does he install ONLY that app on his iPhone without syncing my music also?  I haven't done this before with just an app.  Thanks.

Answer 1

Since you and your friend aren't married or in the same household (I assume you wouldn't have referred to this person as "my friend" otherwise), what you want to do is not permitted by the terms of use of the iTunes Store.
Your friend should create his own Apple ID. He can use your computer; just have him log into your computer with a user account you create just for him, not your own user account. Doing it that way is almost like having your friend use a different computer, since both Mac OS X and recent versions of Windows do a pretty good job of segregating the data of multiple user accounts.
He can then purchase the app using iTunes and sync it to his iPhone. When he's done, he should log out of your computer.
However, be aware that there is no reason to purchase an app using iTunes on a computer and to then sync it to the iPhone. Your friend can use the App Store app that's installed on the iPhone by default in order to download and install any app he likes from the iTunes App Store.