Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
SmoochBot - Open source on-boarding bot for conversational apps
Outbound Apps by Intercom - Embed apps right inside your messages
Live Chat by Sumo.com - Instantly communicate with customers, prospects & visitors
Hotline - In-app chat,real-time engagement & self-service for your app
Actions from Slack - Turn Slack messages into tickets, issues, tasks, and more.