This is a Chinese version of Hearts which is called GongZhu(拱猪) in China. In the game, the queen of spades is a penalty card, known as the pig - players may try to drive out the pig by leading spades; also the loser of the game is known as the pig, and may be required to grovel under the table as a penalty.
In the free version, the following functions are disabled:
1. Game status save when quitting and automatic restore when restarting.
2. Hint for playing card.
You can obtain these functions by buying the paid version.