With close to three million new installs, Slack was the most downloaded mobile team communication app in the United States during 2018, marking growth of 21 percent from the previous year. The full ranking of the top 10 most downloaded team communication apps is above. App download estimates are from Sensor Tower’s Store Intelligence platform.
The second most downloaded team communication app in the U.S. was Skype for Business with more than two million installs for the year, which represented growth of 14 percent from 2017. The next most downloaded team communication app was Microsoft Teams, which grew 208 percent year-over-year, followed by Workplace Chat by Facebook and Quip.
Store Intelligence users can see app revenue and app download estimates for the above apps in addition to historical performance metrics on the Sensor Tower platform.