Chess Clock is a free Android app developed by LR Studios that provides a simple and versatile timer for two-player games, including chess, checkers, go, shogi, othello, and backgammon. The app offers a minimalist design that allows users to easily see each player's time while playing.

One of the most notable features of Chess Clock is its ability to handle seven different time systems, including Fischer, Sudden Death, Sudden Death + Additional Time, Japanese Byo-yomi, Canadian Overtime, Hourglass, and Bronstein. The app also allows users to undo any number of moves, set sound warnings, and restore the clock if it is accidentally closed or paused. Additionally, users can edit player times or change settings while playing, display the clock vertically or horizontally, and choose from several text fonts. The app is optimized for both phones and tablets.

For Go players, Chess Clock includes a specific feature that automatically pauses the clock on Canadian Overtime to let them take their stones. Overall, Chess Clock is a great tool for anyone looking for a simple and reliable timer for two-player games.