Facebook is for a website and Whatsapp is an app where you can text people for free.
what is difference between facebook and what's app
Whats app is just social networking application to share videos, text msg, mp3 etc between your friends and relatives.
Facebook is a social Networking website. Today Facebook is growing as a market place. Online Business, politicians, events organizers everyone is liking Facebook paid advertisement. so Today Facebook is not just a social networking website but they are also becoming a online advertisement service provider.