There are numerous computational programs available for fire influence analysis; however, currently, there is no computational program in Korea specifically designed to aid Authority Having Jurisdiction (AHJ) in fire protection inspections, taking into account promptness and portability. Hence, this study aims to develop a mobile application for fire influence analysis, prioritizing promptness and portability to improve the quality of fire protection inspections and to provide inspectors with insight into fire dynamics. This study outlines specific development directions for a mobile application as part of the conceptual design for the future development of the fire influence analysis mobile application. These directions aim to support fire protection inspection, and detailed development plans have been derived accordingly. The mobile application development plan derived from this study will serve as fundamental data for future mobile application development. In addition, the mobile application to be developed will specialize in supporting fire protection inspection at nuclear power plants in Korea. However, it is not limited to inspectors from AHJ, and is expected to be beneficial to all analysts conducting fire influence analyses.