We rank the best hotel-deal and booking apps for travelers, tested on how well they surface cheap rates, warn you before prices jump, and let you cancel.

Hotel prices move constantly, and the app you book through decides whether you catch the low or pay the padded rate. This site ranks the hotel-deal and booking apps that genuinely help, judged on the things that change what you pay: how cheap the rates really are, whether the app warns you before prices climb, and how easy it is to cancel when a trip falls apart.

Not every app that promises deals delivers them. Some hide fees until the final screen, some bury the refundable rate behind a cheaper nonrefundable one, and some just resell the same rooms at the same price under a louder banner. We look past the marketing at the finished total, the flexibility, and how the booking feels on a phone, since that's where most people book now. Then we rank.

Every app on this list is one we'd use for our own trips. Start at the top, compare a couple before you book, and don't pay more than the room is going for.