Facebook for android presents a mobile version of the popular social network with a few phone-only features. pros. connect with friends: after you sign in, the app pulls in all your facebook. Facebook is the official android app for the iconic original social network par excellence.once again, this app is here to simplify your facebook experience by providing all your favorite features from one spot.. 9apps supports free and fast download of top free android apps&games. install 9apps and find best free apps in one of the biggest app store in the world.9apps