The Flood Monitor system is designed to help people share photos and information in case of a flood in the basin of the Red River. This work is part of the redesign of an application that has the goal of enabling mobile and web-based interactions. My contribution to this project is to develop the iOS interface of the flood monitor system. The main components of the iOS application consist of an interface to view existing data and another interface to upload new markers. The information exchange between the server and application happens via XML communication. The paper discusses features of application, problems encountered while developing and their solutions. It also presents the user interface design and software design/development procedures.