Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
SendBird - SendBird is messaging-as-a-service.
Drift - A messaging app that helps you grow your business.
IntercomExport - Export Intercom conversations to CSV
Drift for Enterprise - Automatically turn website traffic into sales meetings
AppGrowthLab (by SplitMetrics) - 55 app growth lessons from 30 app marketing experts