I made a game in high school and sold it in the android app store along with a free trial version. The trial version got about 300 downloads and the paid versio

I made a game in high school and sold it in the android app store along with a free trial version. The trial version got about 300 downloads and the paid version sold a whopping 3 copies. Ah well, it was a learning experience. It now no longer works despite not having been changed at all; perhaps some new android version broke backwards compatibility, or the API I was using depended on some undocumented functionality.