Yac - Take your time back from Zoom & Slack
Dialog Messenger - handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
Slack - A messaging app for teams who see through the Earth!
Ripcord - A desktop chat client for Discord and Slack
Fibery - Work management platform that adapts to companies and grows with them.
Ziggs - Smoothly Share Content Between Devices!