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
Worklife Slackbot - Your personal meeting assistant, in Slack
LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.
Meetingbird - Powerful meeting scheduling and notes — right in your calendar
Crisp Chat - Multi-channel customer support software
RemoteStandups - Join others and organise remote standup meetings together