Just wanted to say, this is now officially the app I use, now that all the kingdom cards fit on my screen it's the best thing out there.
A couple of things I'd like to see:
1. You're allowed to make the app select 10 or more Kingdom cards, up to 16 if you want. It would also be nice if you could select less than 10, this should be very easy to implement but would help out a lot should I ever need to playtest cards or something.
2. This one may not be so simple, but hey I'll ask anyways. It would be really nice if it were possible to display all of the supply cards used for a certain game (by "supply cards" I mean anything that isn't a kingdom card) in a separate category as opposed to in-line with the kingdom cards. I store my Platinum/Colony, Ruins, Spoils, Potions, Shelters, that kind of stuff separately from the kingdom cards so it would nice to look at those in a separate list to decrease the chance that they're forgotten.
But yeah this app is awesome. Thanks for your work in putting it together