As a developer, gaining users is obviously a priority if you want to grow your Android app, but if you want it to be successful chances are that gaining revenue is also important to you. There are many ways to do this including enticing users with free trials for an app, but according to Absolutdata developers are constantly losing money due to users who opt in for a free trial of an app then quit using after the free trial is over. The opportunity here lies in being able to convert those free customers over as paid users for your application and service, but doing so can sometimes be challenging. Here are some tips and strategies to help along the process in transitioning customers from free to paid subscription users and monetize your Android app.