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
Lineup - build teams, not spreadsheets
LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.
Hyper Island Toolbox - Methods & Tools to improve team collaboration & creativity
Crisp Chat - Multi-channel customer support software
Timbo - Retrospective tool for remote teams, that covers all agile retro stages and is fully customizable