Perhaps the Best Card War App
I bought the upgrade (nice and cheap) to make games shorter. The preview-two mode does that, akin to bumper bowling.
Ever think of making a dungeon-style card war? The suits could be colors; the numbers could be dungeon game characters (dragons for aces, wizards for kings, monarchs for queens, knights for jacks, so on and on, thieves for fives, archers for fours, wenches for threes, minstrels for twos).