Snap Cards app for iPhone and iPad

The aim of the game of Snap Cards, is to find all the duplicate pairs of cards and make them disappear from the screen before the time runs out. Tapping on each of the face down cards on the screen flips that card over to reveal its symbol.
You then have to find the duplicate symbol card from all the other face down cards. If you tap on another card and it has a different symbol, both cards flip back over.
You then have to remember where each symbol card is and find that cards pair. When you find the duplicate symbol cards one after the other, they both disappear from the screen.
If you have cards left on the screen when the time runs out on the clock you lose. If you find all the duplicate pairs of cards before the time runs out, you win!
The game then restarts and the cards are placed in a different order on screen. Try and beat your last best time and find all the duplicate cards. 
Good Luck!