The bug on android is of you click any number or empty square it comes up with the java code error script page 100% of the time. I spent more time clicking "ignore" on that page than I did anything else due to the appaulingly small tile size making it hard to be accurate.
Sadly, the only thing making the game go from perfect to unplayable is that tile size. Would be worth dropping money toward could you pinch to zoom in at least.