Talkus - Chat with your website users from Slack
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Abhisi - Abhisi provides a helpdesk solution that seamlessly integrates with all communication channels used by the customers.
Drift for Slack - Talk to your website visitors & customers in real-time
Retro App Store - How App Store would look like if it was launched in 80s
HelpScout - Help Scout is a simple, straightforward way to provide excellent support