ShuttleMark

ShuttleMark is the all-in-one, offline toolkit for badminton players, club organizers, and coaches. No account, no internet, no ads — everything runs locally on your iPhone and Apple Watch. ■ SCOREBOARD (BWF RULES) - Split-screen red/blue scoreboard with giant, court-readable digits. - Tap to score, swipe down to undo, long-press to reset, one-tap side swap. - 21 / 15 / 11 point systems, best-of-1/3/5, deuce (win by 2) and golden-point cap. - 11-point interval alerts and deciding-set side-swap reminders. - Built-in court & service guide that tracks who serves and where to stand, following official BWF service rules with a live court diagram. ■ APPLE WATCH COMPANION - Score and control the match from your wrist; live two-way sync with iPhone. - Swing Tracker counts your swings and peak swing speed using CoreMotion, and writes a full badminton workout (heart rate, active calories,…