Interesting idea, but why is it an iOS app?
The main reason it's on mobile is so people can just one click, copy their signature (which is a link to their quantified profile) from the app and paste it into any other platform, forum or app they communicate on. Since no one wants to engage in long conversations on a phone, it's simply easier to drop in their signature wherever they like to display experience.
Furthermore, Thoughtly has an activity feed that is really just a discussion board. But it allows you to browse for content/news in categories you find interesting (like flipboard) and see the objective experience and interests of the people who shared the content/involved in the discussion.