Great app, everything seems to work well. The only thing I noticed was that the suit symbols on the cards are a little odd because they're all the same size (almost?) so a 3 looks like it has 5 symbols on it, etc. But that's minor!
It’s even worse with the court cards (aka “picture cards”: jack, queen, king). Out of laziness and for space-saving, they all share the same design: their suit symbol, in big, in the center (and the two corner pips). Not easy to distinguish between them easily/quickly, especially if your sight isn’t good.
I should do something about all that, one of these days. Thank you for your feedback!