Arm Speed Analyzer vs. Driveline PULSE
Wearable Arm SleeveDriveline's PULSE sleeve (built on Motus sensor technology) is a workload-management tool for pitchers who need to manage injury risk over a season. Arm Speed Analyzer is a free app for anyone who just wants to see their speed trend. Different jobs — here's the breakdown.
The Race
Biomechanical Precision
Driveline's PULSE sleeve (built on Motus sensor technology) samples at 1,000 Hz to capture arm slot, forearm angular velocity, and elbow valgus torque — validated, biomechanics-lab-grade detail. Arm Speed Analyzer reads overall device motion, a much blunter instrument.
Season-Long Fatigue Tracking
PULSE exists to track throwing workload and flag fatigue before it becomes an injury — that's its entire reason for being. Arm Speed Analyzer shows week-over-week speed trends, not injury-risk modeling.
Cost
A PULSE sleeve is reasonably priced for what it does, but it's still hardware you need to buy. Arm Speed Analyzer is free on a phone or watch you already own.
Setup
A PULSE sleeve has to be worn on the arm and synced via Bluetooth for every throwing session. If you already wear an Apple Watch, Arm Speed Analyzer needs nothing extra.
Sports Covered
PULSE is purpose-built for the throwing motion in baseball and softball. Arm Speed Analyzer covers throwing and swinging sports alike, from golf to pickleball to disc golf.
Which Should You Use?
Choose Driveline PULSE If…
you're a pitcher — or coaching one — who needs to monitor throwing workload and arm fatigue across a season to reduce injury risk. That's a job a general motion app can't do.
Choose Arm Speed Analyzer If…
you want free, simple speed tracking without buying a sensor sleeve, and you want the same app to work across golf, tennis, pickleball, and disc golf, not just throwing.
Frequently Asked Questions
Does Arm Speed Analyzer track throwing workload like PULSE does?
No. PULSE is purpose-built to measure arm slot, torque, and workload for injury prevention. Arm Speed Analyzer tracks overall speed trends over time, which is a different — and much simpler — kind of data.
Is a wearable sleeve more accurate than a phone or watch app?
For biomechanical detail, yes — PULSE's sensor is validated in published research and samples at 1,000 Hz to capture true arm mechanics. A motion-sensor app is built for convenience and trend-tracking, not lab-grade precision.
Track Your Arm Speed for Free
No setup, no subscription. Just your iPhone or Apple Watch.
