ChironMotion IMU
Yi-Fu Chen Health & Fitness iPhoneiPadiPod touch
ChironMotion IMU is a free Health & Fitness app for iPhone and iPad by Yi-Fu Chen. Requires iOS 18.0. Updated October 5, 2026.
- Price
- Free
- on the App Store
- Size
- 21 MB
- Age 4+
- Updated
- Oct 5
- 2026 · v1.3
Screenshots
About ChironMotion IMU
ChironMotion is a professional-grade motion analysis tool designed for coaches, athletes, and sports scientists. Leveraging advanced iPhone sensors and a proprietary physics engine, it delivers lab-quality jump metrics simply by securing your phone to your waist. Key Features: Comprehensive Test Protocols: Countermovement Jump (CMJ): Measure lower-limb power and monitor neuromuscular fatigue. Squat Jump (SJ): Assess pure concentric explosive strength. Drop Jump (DJ): Analyze Reactive Strength Index (RSI) and plyometric performance. Single Leg Stance (SLS): Evaluate bilateral symmetry and dynamic balance stability. Precise Biomechanical Metrics: Instantly obtain Jump Height, Flight Time, RSI, Peak Power, Rate of Force Development (RFD), and Landing Impact. High-frequency 200Hz sampling captures movement details invisible to the naked eye. AI-Powered Insights: Get personalized training advice from three distinct AI personas: Scientific Expert, Enthusiastic Coach, and Toxic Coach. Go beyond numbers - understand what your data actually means for your training. Professional Reporting & Export: PDF Analysis Reports: Generate detailed reports with waveforms and data breakdowns in one tap. CSV Data Export: Access raw time-series data for further scientific research. Test Comparison: Overlay two test results to visually track progress or analyze asymmetries. Built For: Strength & Conditioning Coaches Physiotherapists Athletic Trainers Professional & Amateur Athletes Sports Science Researchers Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chironmotion.vercel.app/#legal Download ChironMotion today and let data drive your breakthrough.
What’s new
Version 1.3 · Updated October 5, 2026
Track daily CMJ readiness with new Home and Lock Screen widgets. Use Siri and Shortcuts to start a test, check readiness, or find recent results. AI coaching and compatibility with the latest iOS release are also improved.
App privacy
The developer, Yi-Fu Chen, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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