Facebook is No.1 Social Media but when it comes to it’s Mobile app, it will become very poor. The official mobile app of Facebook takes a lot of resources and it makes your phone to Hang. The concept and design are good but it drains lot of battery and This app takes lots of Ram and gives pressure to the CPU. The features are good but all those are not for normal users those features are for creators or public figures. I thought the normal Facebook.com website is far better than this official app.