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.
Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
WhatsGreen Multi Messenger - Easy access to WhatsApp, Line, Telegram, FB Messenger and many others via the Chrome toolbar.
Remote Meeting - Remote Meeting with Video, Voice, Chat and Screen Sharing
Green Messenger - WhatsApp Messenger Web for Chrome. Text/Chat on computer. Notifications, messages, tools.
Around.co - Around.co is an app that provides video calls to remote teams all around the world.