I had to delete half the stuff off my phone to barely clear up just enough room to install the android version.I did see a guy say he was having issues somewhere (could have even been here, I don't remember) - but I don't really know anything about JoiPlay so I can't say much about it.
Hopefully the next version doesn't have any issues with JoiPlay.
I really like this story.
Unfortunately, this is the only device I have, and I have to put everything on my SD card because that's the only place I have enough storage.
JoiPlay is my only means of running Renpy games off my SD card, so if JoiPlay doesn't work then I'm pretty much out of luck.