Facebook has developed a new app called “Hello” for Android users, which pairs your Facebook account and address book for integrated information when someone calls you. A caller’s Facebook information will show up on your screen when they call, including birthdays and other pertaining information. Another key feature is the ability to block unwanted numbers, while also automatically blocking numbers that have been blocked by a large number of people (i.e. spam callers). The app also pairs with Facebook Messenger to allow users to call and message people for free, and the app is available now over at the Google Play Store.