Tempest

This companion app enhances the Tempest Game Clock (sold separately at tempestclock.com). A premium, tournament-grade chess clock, the Tempest uses your Android phone as a vibrant, high-definition display. This app is exclusively for Tempest Game Clock owners: a weighty, classic-style chess clock featuring a patented rocker controller (not touchscreen) for precise timing. The app provides clear analog and digital game timing, supporting 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/text functions during rated games, adhering to FIDE and USCF regulations. See the clock in action and order yours at tempestclock.com.