Will there ever be an android version?
Android has a hard file size limit of 2 GB. This makes standalone versions of larger games impossible. There are ways around that, such as splitting the game into several parts. But most developers find that this is not worth the substantial extra effort.
JoiPlay can be used to play the standard Ren'Py archives for PC on Android, but as far as I know it has the same file size limitation. So it is probably not going to work with this game. (If I am wrong about this, someone please correct me.)