LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Feem - Share files offline. No servers. No cloud. No limits.
Drift - A messaging app that helps you grow your business.
Output Messenger - Secure instant messenger app for office provides seamless instant messaging solutions for all office, corporate and enterprise business communication needs.
Whatshelp Widget - Chat with website visitors via popular messaging apps