If you stuck with the problem, that the program is not running on you device, then PLEASE don't rate it 1star with comment "It doesn't work on my ...." or at least state your problem more precisely (it crashes, it doesn't sort, it hangs or else). I am physically unable to test the program on each and every device in the world, so please, be more specific. Or better, leave such comments here, using the feedback form.
Update after receiving comment from Swirl. If you see the disabled Process Files button, don't panic :) Press Menu button on your phone, select Settings and set up source and destination paths. I admit, it's a bit confusing, I've already received some similar complains. So there is an update coming soon where