Modern mobile application analytics systems collect information about the audience of your application (the distribution of users by gender, age, location, language, etc.) and the features of interaction with it (the time of entry into the application, the time spent in the application, the number of screens viewed, etc.). Some even make heat maps that show which buttons users click more often than others. Use this data as guidelines for the future: invest in the refinement of those areas in which the concentration of audience actions is highest.