You can download the game on PC and use the "Download/Upload Sync" located at the bottom of the Save and Load screen to transfer the saves via the Ren'Py cloud.
not enough data on what the hell a Ren'Py cloud is, all I'm finding is a bunch of anime and maybe the program you are speaking of but I am unable to find a guide or instructions on how to use or install it, perhaps I'm too tired
edit: the thing I believed to be the thing you were speaking of is a coding framework, what the hell am I supposed to do with that?
EDIT#2: I think I got it now thanks!