The aim of this game is to turn over all the cards one by one and find the same ones. There are only two identical cards in each deck. When you find a match, you get a point for each identical card, meaning you get two pints for a pair of matched cards. You get 1 extra point for each card that you match before the animated bonus time for the card ends. However, your score will be deducted by one point, for every previously seen card that is involved in a mismatch.

The game includes beautiful animation of cards and bonus time indication. The points get doubled when a card is matched before bonus time ends.

This supreme version of the app has some default themes, but you are free to add new themes and edit existing ones. Also, you can add or remove emojis, change the color of the themes/cards or the number of cards to be matched. 

Credits: Stanford University. Course CS193P iOS Application Development.