Microsoft has released a new app that's only available to iPhone users.

"Who's In?" works with iMessage and lets users choose an activity — like going out to dinner or watching a movie — and then send it out to a group of people. Anyone interested in attending the get-together can respond through iMessage.

Microsoft hasn't typically been adept at creating social networks, though. LinkedIn, the exception, was an acquisition. Is Who's In any different? Let's take a tour.



— By CNBC's Todd Haselton

Posted 6 April 2017