Microsoft Teams > Slack
After just over two years on the market, workplace chat app Microsoft Teams says it has surpassed main competitor Slack in regular usage.
Teams has over 13 million daily active users to Slack’s 10 million last reported in January.
Microsoft has an enormous advantage to Slack: about 75% of desktop computers run its Windows operating system.
Since March 2017, Teams has been included in the corporate Office 365 software bundle for free.
This was the first time Microsoft broke out Teams stats, although it has said before that the software was its fastest growing business app ever. Now, of course, we know they're legit.