Allo.io - Whiteboarding, documentation, and video chat in one place.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Butter - Butter is a newly launched chatting application that focuses more on the privacy of its users.
Paste by FiftyThree - Show your work. Paste is a new presentation tool for Slack.
Draw.Chat - Anonymous real-time whiteboard with text and video chat.
Inspect by InVision - A magical new design to development workflow from InVision