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.
NextPlane - NextPlane offers cloud-based, scalable unified communications federation service for the enterprise.
WhatsGreen Multi Messenger - Easy access to WhatsApp, Line, Telegram, FB Messenger and many others via the Chrome toolbar.
Voxer - Turn your phone into a Walkie Talkie. Don't waste time on phone calls and voicemails.
Green Messenger - WhatsApp Messenger Web for Chrome. Text/Chat on computer. Notifications, messages, tools.
Sameroom - Chat interoperability-as-a-service