The securities mobile service application （App）is an important measure for the securities industry to adapt to the impact of mobile Internet，provide value-added information services and convenient operating services，to improve user experience and to enhance competitiveness. It is also the most important carrier for securities companies to provide securities information services. At present，securities investors have accomplished movement from PC to mobile. From 2017，the growth of users of securities Apps has begun to stabilize. It has begun to show a small increase in 2018，but the active users have obvious volatility characteristics. At the same time，in order to avoid homogenization competition，securities companies strengthen technological innovation to provided more abundant information and more diversified products through App，and the development of securities App began to further diversify and differentiated competition. The securities Apps from those third-party enterprises are developing faster and faster due to technological advantages. Overall，the calculation of different types of securities App began to show a development gap based on the size of users and the duration of one-day use per capita，indicating that financial information service content has become a key factor affecting the competitiveness of securities App.