Pair of Spades = an app that holds various card games, don't look for the game of 13 as an app when Pair of Spades includes it in, don't look for a separate app of 21, why? because Pair of Spades has it too! it has many card games you can choose from to play with your friends, love playing cards but always forget them at home? don't worry, take your cards wherever you take your iPad because Pair of Spades is like your own personal deck of playing cards.
Nice excellent graphics and image quality
Teaching some one new on how to play 13? or 21? or the other sets of games this app has? don't worry to look it up, this app comes with its own manual reading rules guide. Just read it or let the person who's trying to learn read it and then face off in a card game challenge.