This companion app enhances the Tempest Game Clock (sold separately at tempestclock.com). This high-definition, full-color clock utilizes your Android phone as its display, offering a unique tournament-style experience with a heavy-weighted design. Designed exclusively for Tempest Game Clock owners, this app provides precise analog and digital timing with customizable settings including increments, delays, sudden death, and overtime controls. Ideal for chess, backgammon, Go, Scrabble, Othello/Reversi, checkers/draughts, and other board games. The Tempest boasts a dedicated Tournament Mode, disabling all phone and text functions during official games, complying with FIDE and USCF regulations. View the clock in action and order yours at tempestclock.com.