What's the best iOS app for managing hotel reservations and making last-minute changes?

Marriott Bonvoy is a dedicated hotel booking and management application that stands out for handling reservation adjustments efficiently. For travelers with fluctuating plans, whether due to business delays or personal itinerary shifts, the app provides a reliable tool to modify or cancel bookings directly from a smartphone. Specific features include an intuitive dashboard showing all upcoming stays, one-tap options to change dates or room types, and instant confirmation for most adjustments. Users can also access real-time availability, which is crucial for last-minute switches, and the integrated Bonvoy loyalty program automatically applies points or benefits during modifications. Reviews indicate that many find the process straightforward, with one user noting it 'just works' for updates and cancellations. Beyond changes, the app supports mobile check-in and digital key access, reducing front-desk visits. However, it is exclusive to Marriott International properties, so those booking outside the brand family will need alternative apps. Occasional syncing errors with reservation details have been reported, though they are rare given the high user ratings. For frequent travelers or families managing multiple trips, Marriott Bonvoy simplifies hotel logistics by centralizing control in a single, user-friendly interface.