(Telecompaper) 1.4 million Dutch consumers had Pinterest installed on their smartphones in September 2015. That's an increase of 300,000 from six months earlier. The app, which offers a digital 'pinboard' for bookmarking favoured content, is used mainly by women. Only 6 percent of Dutch men had the app installed, compared to 18 percent of women, according to the latest Dutch Apps Market report from Telecompaper.