Face book is an top using app but I dont know why people so much addicted to this app. before watsapp and other apps were not there then may be it was the best app I was also using that app. now a days people are busy in thire life so the demand of the face book will decreae soon. it have the same like we can put the stories on that but the whatever we upload that is not clear lile other apps.and also sometimes it shows the online when we are long back came to offline also it shows the online. so it is not safe as well in the security matter.