TUI app: Travel information and reservations in one place The TUI app gathers all the information about your TUI trip in one place and makes traveling effortless and safe. The application is designed for travelers who want to manage their holiday trip efficiently, book travel packages, flights, hotels and airport transfers, as well as find and book activities at the destination. An entire travel agency in your pocket! Key Features: ✈️Booking travel packages, flights and hotels: Discover a wide