Almost all movement in a major city now begins with a phone. Mobile apps and interfaces help people do everything from sort through route options to locate an approaching bus or hail a taxi or for-hire vehicle. While cities and transportation regulators have released data and encouraged innovation through contests and hackathons, no U.S. city has aggressively pursued development of an integrated app that enables users to plan, book, and pay for trips across multiple travel modes. Instead, it’s the likes of Uber and Google Maps and CityMapper and RideScout that have demonstrated what is possible, and controlled the movement market to date.