We’ve already shown you how to sync your address book with the Facebook app for iOS to add profile pictures and other credentials, but what if you prefer to use Twitter instead? Well, fortunately for you, you can also sync your address book with Twitter, and it’s incredibly easy thanks to iOS 5’s Twitter integration.
First, open up the Settings app on your device and tap on the Twitter tab. You’ll need to be logged in to sync your contacts, so if you don’t already have your Twitter account set up, enter your username and password and tap ‘Sign In’.
Now all you have to do is tap the ‘Update Contacts’ button to sync Twitter profile images and usernames with your address book.
Once the sync is complete, you’ll find your contacts — with a Twitter account — now have profile images, and a quick link to their Twitter profile, which will launch the Twitter app when you tap on it.
