This study conducts a comprehensive hazard analysis and risk assessment of the smartphone navigation applications used by visually impaired and blind (VIB) individuals, the research first identifies and analyze potential hazards and assess risk scenarios within home environment following the autonomous mobile service robot hazard analysis and risk assessment [1, 20]. The research emphasizes the importance of integrating hazard analysis and risk assessment into the navigation smartphone apps system design and development phases to address home environment potential hazards and ensuring effective safety measures. Moreover, it advocates for the establishment of industry-wide regulatory frameworks to promote the safe development & deployment of smartphone navigation apps for the blind. By combining qualitative and quantitative risk analysis methods, this study provides a strategic roadmap for enhancing the safety, usability, and reliability of blind smartphone navigation apps, ultimately aiming to improve the independence and safety of VIB users.