Pinterest rolls out app-install ads as it appears to be chasing the Facebook effect

Pinterest is rolling out Promoted App Pins, a new format which will allow advertisers to purchase app-install ads within its walls.
The move will let iOS users download apps to their device without leaving Pinterest, with the visual bookmarking platform has been testing the feature with the likes of Glu Mobile, Stash and Ibotta since July.
Promoted App Pins were announced earlier today (28 March) in a blog post, with the feature now available to all marketers via the platform&rsqu