Effective Date: October 31, 2025
Contact: nathanlinshuo@gmail.com
Thank you for using our Walking & Gait Analysis App. This Privacy Policy explains how we collect, use, store, and protect your information when you use our services. We respect your privacy and are committed to keeping your data safe.
Personal Information You Provide
Email (optional): If you contact support or create an account (future feature).
Profile preferences: App settings and usage preferences.
Motion & Video Data
Videos you import or record
Pose detection data: Joint coordinates, gait metrics, angles, symmetry scores, and biomechanical measurements
Annotations you manually add
This data is processed locally on your device. We do not use videos to identify you or others.
Device Information
Used only to ensure proper app functionality:
App version
Device model and OS version
Crash logs and performance data
We use your data to:
Perform gait and motion analysis
Generate biomechanical measurements and reports
Store your analysis history
Improve stability, performance, and user experience
Provide support, if you contact us
We do not sell, share, rent, or trade your personal information.
Local Storage
All videos, pose data, and annotations are stored locally on your device.
You may delete them at any time inside the app.
Cloud Backup (future feature)
If you choose to enable cloud backup when available:
Data will be encrypted in transit and at rest.
You may opt out at any time.
You can:
Import or delete videos at any time
Clear analysis results
Request account deletion (when accounts are supported)
For requests, email nathanlinshuo@gmail.com
Camera: If you choose to record videos
Photos/Files: To import and export videos
We only access media you select.
Currently none.
If used in the future (analytics, cloud storage, etc.), this policy will update and we will request consent.
This app is not intended for children under 13.
We do not knowingly collect data from children.
We use industry-standard security practices to protect your information, including:
Local-only processing
Encrypted storage where applicable
No third-party data sharing
No system is perfect, but we work hard to keep your data safe.
We may update this policy as the app grows.
If we make significant changes, we will notify you in-app.
If you have questions or privacy concerns:
📧 nathanlinshuo@gmail.com