Swing Analyzer - Measure Your Swing Speed with Precision Track and improve your swing speed across 5 sports: Tennis, Badminton, Table Tennis, Baseball, and Golf. KEY FEATURES: Advanced Sensor Technology - Quaternion-based orientation tracking for accurate gravity removal - Complementary filter sensor fusion (gyroscope + accelerometer) - Automatic swing detection with sport-specific thresholds - Real-time speed measurement with live chart visualization Multiple Sport Modes - Tennis, Badminton, Table Tennis, Baseball, Golf - Each sport has optimized detection thresholds - Switch between sports instantly Swing History & Statistics - Every swing is automatically saved with detailed metrics - View max speed, average speed, peak acceleration, and duration - Track progress with interactive charts (7 days, 30 days, all time) - Personal records highlighted for each sport Swing Analysis - Acceleration curve visualization for each swing - Phase breakdown: Preparation, Acceleration, Follow-through Calibration - Simple one-tap calibration for improved accuracy Share Results - Share your best swings with friends on social media Bilingual Support - Full English and Chinese language support PRIVACY All sensor data is processed locally on your device. No data is transmitted to external servers. HOW TO USE 1. Select your sport mode 2. Hold your phone firmly like a racket or bat 3. Tap Start and swing! 4. Your speed is measured and recorded automatically Perfect for athletes, coaches, and sports enthusiasts who want to track and improve their swing performance.