https://joiplay.cyou/ you can download them from here directly. Do not use the play store one, as that has not been updated.
I mean were ken find joiplay version work on Growth Academy
you do need the ren'py plugin as well to make it run on joiplay
I tried one but is not working
so you got both joiplay, ren'py plugin and the windows version downloaded? If so you should be able to play.