Houseparty - Brining empathy to online communication.
App for WhatsApp by coldX - Integrated WhatsApp functionality on the Desktop.
Booyah - Video chat with up to 12 friends at the same time.
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.
Slack - A messaging app for teams who see through the Earth!
WhatsGreen Multi Messenger - Easy access to WhatsApp, Line, Telegram, FB Messenger and many others via the Chrome toolbar.