The Yunlin County government has implemented multiple walking trails within the region to support local aging and promote health. By integrating RFID technology with a mobile Application, the government aims to understand the preferences and satisfaction levels of residents, thus assessing the effectiveness of resource allocation. This study analyzes user interactions with the App while utilizing these trails. Data were collected through both online and physical surveys, yielding 441 valid responses, which were analyzed using SPSS statistical software. The findings indicate that higher ease of use and utility perceptions of the App correlate with greater satisfaction with the trails. Additionally, increased satisfaction is linked to a higher likelihood of future use of these health trails. Beyond optimizing resource allocation for the public sector, these results also provide valuable insights for expanding the App's adoption to other regions.