Mobile Technology plays significant contributions to the humanity in many areas. One of these is on the issues on Disaster Risk Reduction Management through developments of mobile applications. This study primarily aims to design, develop and test the Hazard Safety Tips Mobile Application in Waray-waray dialect. This study is conducted to help the residents of Salcedo, Eastern Samar become more aware of how they will be able to manage their safety in times of calamities and disaster through the aid of this application. Waterfall model is used as System Development Life Cycle (SDLC) which includes the following phases: Requirement Definition, System and Software Design, Implementation and Unit Testing, Integration and System Testing and Operation and Maintenance. The researchers gathered data in the Municipal Disaster Risk Management Office and its website which served as inputs in the development of the application. Flowcharts and data flow diagrams were created for the designing of the application. User interfaces were designed and developed using Android Studio. The application had undergone three testing strategies: Benchmark, Alpha and Beta Tests using ISO scorecard. Results showed that in terms of usability, the application scored 88.75, which is above average. This means that the developed application was a great help in terms of hazard and disaster preparedness to the residents of Salcedo, Eastern Samar and the region as a whole. The study concluded that the mobile application was effective and functional because it conforms to the specified requirements.

Keywords : Mobile Development, Mobile Application, Hazard, Safety Tips, Waterfall Model.