ChironMotion IMU
MeasureWhatMattersinMovement
Free · In-App Purchases
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.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Added a complete legal information center with privacy policy, terms of service, and data deletion details, and refined Meta SDK integration and startup behavior for better stability and release readiness.
The developer, Yi-Fu Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Yi-Fu Chen
- Size
- 26.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later.
- iPhone
- Languages
English and 3 more
- English, Japanese, Korean, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Yearly Plan USD 49.99
- Pro Monthly Plan USD 4.99
- Copyright
- © 2026 ChironMotion Studio