Reservations can be interpreted as order transaction for place, ticket, or goods between business owners or service providers with consumers. In Malang, people especially reserved some travel reservations manually. They reserve the travel by phone to the travel customer service or came to the travel office. Based on the problem, the author made an application called RIVAL (Cari Travel Malang) as a one-stop app solution for travel reservations in Malang that runs on a mobile platform with an Android operating system. In this design phase, the application is still local, runs on the local server developer, and runs online for application testing to several people. With this application, it is expected that travel reservations that initially carried out manually by coming to the service provider, now it can be done anywhere. The results of the implementation and testing were given to eight respondents with several different versions of the Android operating system, namely Android Lollipop, Marshmallow, Oreo, and Pie. It was found that the application runs well without any UI constraints or main functions in the application with additional data response obtained from the test questionnaire form that the application is easy to understand from the user interface, provided information, and easy to use. With this application, it is expected travel reservation in Malang can be done easily and efficiently.