A CHESS CLOCK THAT USES YOUR PHONE. Download the app and dock your phone to create a large, bright game timer with a weighted rocker that responds to every move. No batteries, cables, or confusing buttons — just set it, dock it, and rock it. SET ANY TIME CONTROL IN SECONDS. Use your phone’s touch screen to quickly set blitz, increment, delay, or full tournament formats. No manual needed, no button combos to memorize — just swipe to set and play. DESIGNED JUST FOR YOUR GAME. Chess (increment/delay), Go (Byo-yomi), Backgammon, Scrabble and more. Everything you need, nothing you don’t. PREMIUM, TACTILE DESIGN. Solid black walnut base with genuine leather touch surface, substantial and non-slip for fast, confident play — even in blitz. Smooth rocker action that feels as good as it looks. ALWAYS IMPROVING. Free app updates bring new features and game modes over time. You already own the best display — Tempest turns it into a simpler, smarter, more capable chess clock that keeps evolving. Transform your phone into a modern chess clock with Tempest — a hybrid system that combines a precision-engineered dock with a powerful companion app. Simply download the app, dock your phone, and you instantly have a large, bright, easy-to-read game timer with intuitive touch controls and a satisfying, tactile rocker base. Unlike traditional chess clocks with confusing buttons and rigid setups, Tempest uses your phone’s familiar interface to make setting any time control fast and effortless. Swipe to configure blitz, increment, delay, or full tournament formats in seconds. No manuals, no memorizing button combinations — just set it, dock it, and play. Tempest is designed around the needs of each game. Whether you’re playing chess, Go, backgammon, Scrabble, or more, each game type presents only the features that matter — from Byo-yomi timing for Go to overtime modes and match tracking. The result is a clean, focused experience that keeps gameplay simple while still supporting advanced formats when you need them. The dock itself is built for confident play. Its solid, weighted, non-slip base stays stable even during fast-paced blitz sessions, while the smooth rocker action responds instantly and reliably to every move. Premium materials and a refined finish give it a tactile feel that matches its performance. Available in Classic (sleek all-black with soft-touch surface) or Deluxe (solid black walnut with genuine leather touch surface). And unlike any traditional chess clock, Tempest keeps improving. Free app updates continuously add new features, game modes, and refinements over time. You already own the best display — Tempest turns it into a simpler, smarter, more capable game timer that keeps evolving.