JudoScore - Judo Scoreboard

Cooltime Studio

About this app

JudoScore is an offline electronic judo scoreboard for referees, coaches, and organizers. Enter scores and penalties and it automatically judges the winner under the current IJF (2025–2028) rules. Run a match with one hand on a single device — no internet required.

■ Automatic judging
· Ippon, and two Waza-ari combined into ippon, handled automatically
· Win by score advantage, with tiebreak priority on equal scores
· Automatic hansoku-make when shido penalties accumulate
· Golden Score (overtime) entry and sudden-death decision

■ Osaekomi (hold-down)
· Automatic hold-down timing
· Yuko / Waza-ari / Ippon awarded automatically by elapsed time

■ Match control
· Start/stop, decision (sore-made), undo, reset
· Manual kiken-gachi, fusen-gachi, and direct hansoku-make
· Configurable regulation time (2 / 3 / 4 min) and shido limit

■ Records
· Finished matches saved automatically
· Detailed view: player names, winner and win reason, scores, and match settings

■ Display & usability
· Full-screen landscape scoreboard — BLUE on the left, WHITE on the right
· Keeps the screen on during a match
· Light, dark, and system themes
· Tap to add a score, long-press to correct (prevents mis-taps)

■ Notifications
· Daily reminder at a time you choose (works with your system notification settings)

■ Privacy
· Fully offline, no account or sign-in
· Match records are stored only on your device

Run scores quickly and accurately anywhere — dojo training, school and club tournaments, or practice matches.