The App

Track speed and acceleration on your iPhone or Apple Watch. See real-time data, review your history, and improve your game — all with a single tap.

Real-Time Speed

Live Telemetry

See your speed and acceleration update in real time as you move. Arm Speed Analyzer uses the accelerometer in your iPhone or Apple Watch to deliver precise, instant readings.

Two Devices, One App

iPhone

Hold your iPhone during a swing, throw, or punch and get accurate speed readings right on screen. Your records sync automatically to your history.

Apple Watch

Wear your Apple Watch and track speed hands-free. Perfect for swings, throws, and any motion where you want your hands unencumbered.

Built for Every Sport

Golf Swing speed
Tennis Serve & stroke speed
Baseball Throw & bat speed
Disc Golf Disc throw speed
Cricket Bat & bowl speed
Football Pass & throw speed
Boxing Punch speed
Leg Speed Ankle-mounted tracking

Track Your Progress

History & Charts

Every recording is saved automatically. Review past sessions, compare max speeds, and track your consistency over time. Consistency is key — whether you're swinging a club, throwing a ball, or serving a match point.

Ready to Track Your Speed?

Download Arm Speed Analyzer and start measuring your speed on iPhone or Apple Watch today.

Download on the App Store