Facebook is a good app for communication. At this app provide plaform to connect the person to one place to anather place. Based on a network .its very popular aap at this time.
in facebook mobile aplication or app there are more good feature avelable . Its provide longs community plate form to connect a person to anather person.
if you want to intract a word wide people so sgoud use this app its provide aplate form to intract many peopul for communication.
I am also use this app its very good app use try this.