Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Drift - A messaging app that helps you grow your business.
Crisp Chat - Multi-channel customer support software
Whatshelp Widget - Chat with website visitors via popular messaging apps
Mutiny - Personalize your website for each visitor
Slack for Mac - A new, improved Slack desktop app for Mac