9. At number nine of our list of top social media apps in 2016 is Pinterest. It was termed as a “catalog of ideas” by CEO Ben Silbermann. The app has been designed in a way to find your inspiration when you need it the most, as users can pin images that most interest them. The site, which is most popular with women globally, is also being used by retail companies for advertising and style trending. The app could play an integral role in brand promotion, as 72% of users say they have found a new brand using Pinterest.