I love the idea of an android app. However, I think the coding can be improved,
(1) the touch is not responsive for some reason, I have to press the square several times before it responds. There's nothing wrong with my dual core tablet - i have checked using other apps, they behave fine - perhaps the app is "pausing" in order to refresh the ads too often?
(2) The next button is really tiny and at the edge of the screen, very hard to press, can we have a larger next problem button?
Thanks very much, and if you asked me if I would pay a few bucks for an improved app, I would say yes! solving chess problems on the go is so much more interesting1