TheAppBuilder platform leverages Google Analytics to provide very comprehensive analysis of how apps are used.
Google Analytics is a comprehensive platform tracking a vast array of different data, including new vs returning users, individual page views, flow through the app, what documents/videos etc have been accessed, spread of use across various devices, mobile vs desktop and a host of other information.
There are a variety of ways of consuming the data from Google Analytics. The options include creating dashboards, exporting data as csv files or visually as pdfs. You can opt for high-level graphical representations or granular, clickable tables. There are also mobile apps that you can use to track your stats on the move.