The number of daily Slack users is growing like crazy, and it doesn't show any signs of slowing

3:34pm PDT - August 9th, 2018    office 365 - Business Insider

For the last five years, instant messaging app Slack has found success as the app that employees at startups and big companies alike use to talk to each other. That success has led the company itself to growth: TechCrunch reported Wednesday that the company i…