SwingTracker

The SwingTracker sensor captures motion data in real-time and sends it to the free, sport specific SwingTracker iOS app via Bluetooth.
Compatible with Apple devices only.
Sensor memory holds up to 128 swings when mobile device not nearby
Dedicated iPhone and iPad apps for both Baseball and Softball
Analyze your swing on 4 core measurements:
Max Barrel Speed
Trigger to Impact Time
Attack Angle
Impact Momentum
Compare swings to national age/skill benchmarks from 8U through Professional
3D View of swing plane and path synced with swing metrics
Join Groups and compete on Leaderboards
Live, in-app Support chat 12 hours/day, 7 days/week