In order to explore the factors influencing the user sharing degree of government apps in the field of public transportation, this study selected government app Beijing One Card and business app Bus Code (Beijing area) in the same field as the comparative analysis objects, and based on the network questionnaire survey and multiple regression analysis, explored the differences of factors influencing the user sharing degree of the two apps. It is found that system quality and platform promotion effect have a significant positive impact on the user sharing degree of two apps, while service quality has no effect on the user sharing degree of two apps. User preference affects user sharing degree of government app Beijing One Card, but has no effect on business app Bus Code (Beijing area). Since the downloads of Beijing One Card app is much higher than the downloads of Bus Code app (Beijing area), this paper believes that user preference determines that users are more inclined to choose government apps instead of business apps. In addition, government apps and business apps not only need to ensure the system quality and pay attention to the platform promotion effect, but also need to focus on the user’s preference and guide the direction of the user’s preference in a normal way, so as to improve the user sharing degree and expand the promotion scope of two kinds of apps.