NEW YORK-Porter & Sail has provides a new digital app that combines smart mobile functionalities with dynamic, customized city guides. Aimed at leading lifestyle hotels, the app turns guests' off-property experience into the hotel's newest amenity. The Porter & Sail app moreover reimagines the city guide concept as a 21st century hotel-guest touch-point; one that ...The post Digital Concierge App Provides Insider Content appeared first on Lodging.