
In October, Slack downplayed the rise of Teams saying that Microsoft was essentially padding the numbers by including those who only use the app for voice calls.

Alcoa, L'Oreal, and Telefonica are just a few of the large corporations that have started using its app.ĬNBC notes, Microsoft CEO Satya Nadella and Vice President Jared Spataro said that not only has Teams been able to lure some Slack users away, it has also found its way into more than 350 enterprises with at least 10,000 employees using the software. The surge in the use of Teams is attributed in part to big-name companies adopting the software for workplace collaboration. Despite Slack having a two-year head-start, Microsoft surpassed the startup's numbers in July this year, announcing over 13 million active users, up 3 percent over the 10 million its competitor reported in January. Microsoft launched Teams in November 2016. The work-collaboration company's stock is down overall about 19 percent since the company went public in June and has fallen by more than 50 points since a day-one peak of $38.62 per share. It says that number is up by 54 percent and puts it way ahead of Slack's last recorded user number of 12 million in October.įollowing the news, shares in Slack Technologies dropped more than 10 percent by midday. On Tuesday, Microsoft reported that its Teams collaboration app has more than 20 million active daily users.

Slack, however, remains optimistic recently saying that Microsoft's user base is over-inflated. In a nutshell: Things are not looking good for Slack in the workplace productivity market as Microsoft's Teams app steadily increases its lead in user numbers and analysts tell investors to sell.
