WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
App for WhatsApp by coldX - Integrated WhatsApp functionality on the Desktop.
WhatsGreen Multi Messenger - Easy access to WhatsApp, Line, Telegram, FB Messenger and many others via the Chrome toolbar.
Sesame Chat - A Self-Aware, Digital Assistant that Protects Your Messages
AVAILO - AVAILO is a business communication app for teams.
WhatsApp Web To Go - WhatsApp Web client for your phone/tablet with media support