Tempest

This is a companion app for the Tempest Clock, which is sold separately. It is designed exclusively for the Tempest Game Clock, available at tempestclock.com. This is a unique, tournament-style game clock with a heavy-weighted build that uses your Android phone as a high-definition, full-color display. The app is intended only for owners of the Tempest Game Clock—a deluxe, traditionally shaped chess clock that uses a patented precision rocker controller during play, not the touchscreen. It pairs with this app to deliver both clear analog and digital game timing, and can be used with or without increments, delays, sudden death, or overtime time controls. It works perfectly for Chess, Backgammon, Go, Scrabble, Othello/Reversi, Checkers/Draughts, and other board games. Tempest also includes a strict Tournament Mode that disables all phone and messaging functions during rated games in accordance with FIDE and USCF guidelines. To see the clock in action and place an order, visit tempestclock.com.