appear.in provides one-click video conferences right in your browser without requiring PIN codes or additional software.

Bitrix24 is a free (for small businesses) social enterprise platform.

Curse is an online game portal and network of gaming websites.

Empathy is an instant messaging (IM) and voice over IP (VoIP) client which supports text, voice, video, file transfers, and inter-application communication ov…

Facebook Messenger is the official Facebook app that lets you have text conversations with all of your friends on the popular social network.

Fleep enables communication within and across organizations, be it your team chats, project communication or 1:1 conversations.

Asana is a web and mobile application designed to help teams track their work.

Grape is an REST-like API framework for Ruby. It's designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by prov…

Discord is a freeware proprietary VoIP application designed for gaming communities.

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform.

FaceTime is a proprietary videotelephony product developed by Apple Inc. FaceTime Audio is an audio-only version.

Flock is a communication app for teams. Packed with tons of productivity features, Flock drives efficiency and boosts speed of execution.