Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
HiOperator - HiOperator is a virtual assistant that answers phone calls, chats with customers, provides in-app help, takes orders, and provides support.
Outbound Apps by Intercom - Embed apps right inside your messages
ClaimCompass - Get paid for delayed or cancelled flights
Intercom App Store - Integrate with Intercom and grow your business