Outbound Apps by Intercom - Embed apps right inside your messages
Ticksy - Simple, beautiful customer support.
Hotline - In-app chat,real-time engagement & self-service for your app
HelpNinja - Simple & Affordable help desk
Semrush App Center - Power your marketing by connecting your apps to Semrush data
HelpScout - Help Scout is a simple, straightforward way to provide excellent support