For about 2 years I've been studying the direction of Java (android) and in December I began to upload my applications to the store. All the projects I did myself, without anyone's help, so I can safely say that I learned a lot of nuances of development and publication in the store. The largest project you can see in my profile in GitHub'e, there is also a link to the application on Google Play. For a few months, the total number of downloads of Lovell Studio applications exceeded 120k, and total earnings over $ 500. Surprisingly, more than 90% of the profits brought the simplest, but useful and beautiful application. https://play.google.com/store/apps/developer?id=Lovell+Studio