The iPhone supports countless useful apps, and one of the best known is iTunes. This app works in tandem with your computer’s iTunes program and with your iTunes account. Although it isn’t exactly possible to put multiple iTunes accounts on your iPhone, you can sync media from multiple accounts to one iPhone, which is almost the same thing. All you have to do to authorize a computer is click the “Store” menu at the top of iTunes, click “Sign In” and provide your user name and password, then click “Store” again and finally select “Authorize This Computer.” Then you can sync your media with an iPhone, and anyone else who authorizes his account with that computer can sync his content with that same iPhone. Writer Bio
