Abstract-In order to stay relevant to the needs of the modern users, libraries need to make their catalogs and other services easily accessible on mobile devices. Libraries face a number of unique challenges in this process related to 'mobilizing' catalog access, integration third-party information systems, and operating with very limited resources. This paper describes an effort to create a mobile application for an academic library, which includes identifying library services relevant to mobile users, minimizing development costs by utilizing a number of open-source components, and evaluating the usability of the resulting application.