As David d C e Freitas said, Google Analytics is not just for web applications, but also track mobile applications on most popular platform like android, iOS and so on. Now ,there are many analytics tools on the market for you which track different kinds applications. For example, Flurry, Countly, Appsee, etc are for mobile apps, Deskmetrics, DeskAppTrack, etc are for desktop apps. Just take a look at these analytics tools and choose one or more to be yours.
