Shanghai Touch is a free mahjong solitaire game available for Android devices. The aim of the game is to remove all matching pairs of tiles, which must be free on either the left or right as well as on top. In most cases, you must match tiles exactly to remove them, but there are two exceptions: you can pick any two flower or season tiles.

The game offers a simple and intuitive interface, making it easy to navigate and play. It also provides various tile sets, backgrounds, and music to customize the game according to your preferences. The game has a total of 100 levels, each with increasing difficulty, providing a challenging and engaging experience for players. Overall, Shanghai Touch is a great choice for players who enjoy mahjong solitaire games and are looking for a fun and entertaining way to pass the time.