More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere. WhatsApp is free and offers simple, secure, reliable messaging and calling, available on phones all over the world.
WhatsApp started as an alternative to SMS. The product now supports sending and receiving a variety of media: text, photos, videos, documents, and location, as well as voice calls. Messages and calls are secured with end-to-end encryption, meaning that no third party including WhatsApp can read or listen to them.