Unfortunately I don't know, since I've never used/tested it. It all depends on the developer/creator and if he's made it compatible to run ren'py games on your device
For that to happen, I'd have to remove alot of features/content, which would end up breaking the game. Right now I'm busy working on the next update and don't have a lot of time to strip it down to it's bare minimum.
All I can say, is if you have another device/more modern phone that has more ram, try using that.