Since launching in 2013 , the US company now has around 6mn daily users and 2mn paid accounts , with an average of 320 minutes being spent on the tool by its users during the week . Something of an alternative to email , Slack brings team collaboration and communication into one place and works on any device which makes it particularly appealing to an agile , flexible workforce .

https :// asana . com

Asana is a web and mobile application designed to help teams collaborate and track their work . The business was set up by Facebook cofounder Dustin Moskovitz and ex-engineer , Justin Rosenstein in 2008 . Asana has previously announced that it has over 15,000 organisations using its software and more than 140,000 teams . The company was valued at $ 600mn last year .

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