tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page

Explain Everything - Explain Everything is an easy-to-use design, screencasting, and interactive whiteboard tool that...

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Conceptboard - Instant Whiteboards for Teams & Projects

LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.

Microsoft Whiteboard - The canvas where ideas, content, & people come together.