Facebook is an app to connect with friends or family members.
Its design very good where you can see all your online friends on one side of screen and regular post of friends in the center.
If your internet is on facebook also provides popup on mobile screen.I like this feature very much.
On facebook you can search your old friends if they are on facebook also you can send messages even if your friends are offline.You can share funny videos or posts on national issues, pictures.
It also reminds you of your friends birthday which is very useful feature.
You can share your status and feelings.
you can like and comment any pics or posts posted on facebook by your friends.
It is wonderful app to stay in touch with your friends.