Sprocket - Accelerate Play Time
Sprocket is a timer that accelerates the pace of play for any game.
You can change the number of players in the settings and the timer will change accordingly.
There is a specific timer for one player, two player, and three player games.
This app is completely gesture based making it very easy to use and gives it a very clean and elegant user interface.
To view the full list of instructions and features, tap "Timer" on the home screen.