Hello, I am trying to build a new app for iPhone. The most important thing that I really need to start this app is to be able to use the Address Book of the phone in the App. All I could find was how to create a new address book and add contacts into it. Please help me because I'm new in xCode and this forum as well. ---------- One app that has this option is Viber. it's for Voip calls and texting.