Slack is a business team messaging and collaboration app with rich set of features to effectively manage team communication. Slack communication happens by channels which can by divided up by team, project, client, or other custom levels as per an organization need.

Slack features secured communication, searchable messages, 1:1 and group voice/video calls, integration with other famous business apps like Google Drive, Office 365 and many more, file share, advanced identity management, and large-scale collaboration.