Microsoft describes Teams as "the chat-based workspace in Office 365."
Microsoft made a public preview of Teams available in early November. At that time, officials said Teams would be available to Office 365 commercial customers with one of the following plans: Business Essentials, Business Premium, and Enterprise E1, E3, and E5. (Microsoft Teams will also be available to customers who purchased E4 prior to its retirement.)
Those who are subscribing to any of these plans will get Teams for free as part of their paid subscription. There will not be a totally free, entry-level version of Microsoft Teams, officials said last year.
Microsoft Teams runs on Windows, Mac, Android, iOS, and the Web.