Judo Score Timer is an offline tool for judo training, club internal matches, teaching bouts, and referee practice. It focuses on practical match recording: quickly log ippon, waza-ari, and shido penalties, manage match time and golden score, and save each bout result for post-training review by coaches, athletes, and referees. No login, no internet connection, and no personal data collection. All match records stay on the device, making it suitable for dojos, school clubs, camps, and long-term individual practice.