Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Yac - Take your time back from Zoom & Slack
Roby - Refreshingly simple helpdesk for Slack & Teams users
Beseda - Async video and audio messaging for remote teams
Sidequest for Slack - Create and track personal or support team tasks, 100% inside Slack.
Slack - A messaging app for teams who see through the Earth!