Dunkin’ Donuts’ Dunkin’ Mobile payments and rewards app has been downloaded more than 10m times since its launch in 2012 and two million customers have signed up for its DD Perks loyalty program, available on mobile and via a plastic card, the US merchant has revealed. “These two digital milestones are evidence that our loyal customers are responding to our efforts to provide a superior mobile experience,” says Dunkin’ Donuts’ John Costello.