Beepix Chess Clock

The Chess Clock has a simple orientation based interface. Enter the desired time for each player while holding the phone vertically, or use the five or ten minute default button, then turn the phone horizontal for the clock interface. The clock interface is a single button that switches color to indicate the current players turn. In case of accidental flip during play, the clock saves and displays the remaining time, then resumes upon returning to the horizontal.
License Free
Operating System Webware