HeySpace - HeySpace is the only free task and simple project management software with communication and collaboration feature.
Plutoview - Shared browsing solution for remote group collaboration
Slack - A messaging app for teams who see through the Earth!
Pop - Super fast, lo-fi video texting with close friends
Skarpline - Skarpline provides centralized enterprise messaging, link sharing and file management to improve productivity.
Snippyly - Turn your screen into a collaborative document.