SprintStart vs ReMotion Sprint

SprintStart for Sprint Block Performance is the leading tool for your sprint and race start training. Using our sprinting start optimized app, your iPhone and Apple Watch can call the starting sequence and start your race. Record, sync, and share your start training sessions. WIth our reaction time measurement, your response to the starting sound helps you track your performance out of the blocks and off the line. Using your device's acceleration sensors, your reaction time is recorded and displayed, and synchronized via iCloud to all your devices using SprintStart. Trigger a start from the app, from Siri, a shortcut, and your Apple Watch Ultra's Action button. SprintStart - Designed and built by a USATF Level 1 Coach and Masters-level sprint competitor, SprintStart has been track-tested from block, 3-point, and standing starts. You cannot get more convenient, or useful, than SprintStart. See you at the blocks! Features: - Clear voice calling of the starting sequence. - Customized intervals between start commands to model the race environment. - Start from the "bang" or a clear starting tone as your "go" sound. - Uses your device's accelerometer to detect reaction time to the "go" command - and adjustable sensitivity helps ensure you get accurate reaction measurements no matter which device or how you might be carrying or wearing it. - Optionally, display your reaction time at end of each start - your reaction time is always saved. - Export reaction times, dates, and heart rate (available on Apple Watch app) as a CSV to track your training performance over time. - Chart your reaction times for your sprint session right on your device - iPhone or Watch! - Synchronizes start & reaction information via iCloud, accessible on all your devices using SprintStart. - Apple Watch app uses haptic taps along with the voice commands. - Works GREAT with AirPods (especially the Watch app) - eliminate distractions and focus on your training!

ReMotion Sees What You Can't Measure top speed and analyze sprint mechanics from any iPhone. No gates, no radar, no expensive gear — just your phone and a couple of cones. Sprinting can feel fine while patterns build underneath the surface. Those hidden patterns create two problems at once: performance risk (wasted reps, slower progress) and injury risk (compensations that add up over time). ReMotion helps you see what's happening sooner, so you can correct earlier and keep training consistent. Record a sprint in Live Mode or upload a video. ReMotion clocks how fast the athlete is really moving and breaks down key sprint phases and body positions — then gives you clear, coaching-style feedback so you know what to work on first. What you can do with ReMotion: - Measure top speed and velocity from a single iPhone — no timing gates required - Analyze stride and sprint mechanics from video (Live Mode or Upload) - See phase-by-phase insights (Toe-Off, Strike, Touchdown, Full Support, and more) - View the key angles and markers that drive your results - Get training-focused movement flags and pattern insights (no medical claims) - Receive athlete cues and coach-style cues you can apply right away - Export and share results for review and communication (when available in your plan) Who it's for: - Coaches managing multiple athletes or groups who want faster feedback and clearer communication - Athletes who want simple, actionable technique improvements between sessions - Parents who want clarity on what to work on between practices Plans ReMotion Pro unlocks full speed measurement, stride analysis, and advanced tools for development and review. Available as a weekly or annual subscription Important note: ReMotion is for training and educational purposes only. It does not provide medical advice or diagnose injuries. If you choose to upgrade to our subscription, payment will be charged to your Apple account, and your account will be charged 24 hours before the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the App Store after purchase. Terms of Service:https://www.remotionai.com/terms Privacy: https://www.remotionai.com/privacy Patent Pending