MULTIMEDIA: Send and receive photos, videos, and Voice Messages.NO ADDITIONAL FEES: WhatsApp uses your phone’s Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to message and call friends and family, so you don’t have to pay for every message or call.First year FREE!* (WhatsApp may charge thereafter, current price is $0.99 USD/year). Switch from SMS to WhatsApp to send and receive messages, calls, photos, videos, and Voice Messages. WhatsApp uses your phone’s Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to message and call friends and family. In addition to basic messaging WhatsApp users can create groups, send each other unlimited images, video and audio media messages. WhatsApp Messenger is available for iPhone, BlackBerry, Android, Windows Phone and Nokia and yes, those phones can all message each other! Because WhatsApp uses the same internet data plan that you use for email and web browsing, there is no cost to message and stay in touch with your friends.
WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.