Facebook founder Mark Zuckerberg announced Facebook home on 5th April 2013, Facebook homes is a new android launcher in which turn your Android phone into a great, living, social phone. Facebook wrote on their blog that Facebook home isn't a phone or operating system, and it's also more than just an app. Home is completely new experience that lets you see the world through people, not apps. [Facebook Home]
From the moment you wake up your phone you become immersed in cover feed. The home cover feed replaces the lock screen and home screen. It's a window into what's happening with your friends.
Chat heads helps you to chat even when you're using other apps, All your conversation in one spot send and receive text and Facebook messages in one place. You can move chat head around and respond to messages. And since SMS is integrated into Facebook Messenger for android, chat heads include Facebook messages as well as texts
Notification about Calls, Events, Facebook updates
Cover feeds is great for seeing everything going on in the world. But when something happens that's more important and directed at you, like a friend posting on your timeline, you'll receive notification with their profile picture.
it's as easy to get to your apps in home as it is on any other phone, swipe up to see your favorite apps in the launcher.