WhatsApp WhatsApp WhatsApp Messenger :: cross-platform mobile messaging app for iPhone, BlackBerry, Android, Windows Phone and Nokia. Send text, video, images, audio for free. *whatsapp.com* *3,418* *International*
Skype Skype Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile. *skype.com* *2,517* *International*
Slack Slack Slack brings all your communication together in one place. It’s real-time messaging, archiving and search for modern teams. *slack.com* *817* *International*
We Chat We Chat Available for all kinds of platforms; enjoy group chat; support voice,photo,video and text messages. *wechat.com* *389* *International*
Zopim Zopim Award-winning live chat software solution. Chat with visitors in real-time and increase conversions. Sales and support made easy for businesses. Free 14-day ... *zopim.com* *86* *International*
HipChat HipChat HipChat is hosted group chat and video chat built for teams. Supercharge real-time collaboration with persistent chat rooms, file sharing, and screen sharing. *hipchat.com* *90* *International*
Jostle Jostle Jostle’s cloud-based simple intranet solution; the next-generation intranet that improves employee engagement and internal communications. *jostle.me* *9* *International*