Privacy Policy

Last Updated: April 23, 2026

1. Introduction

Welcome to Vektor-Strong. We respect your privacy and are committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard your information when you use our fitness tracking application and ChatGPT integration.

2. Information We Collect

We collect the following types of information:

• Account Information: Email address, name, and profile picture from Google OAuth
• Fitness Data: Workouts, exercises, goals, equipment, and analytics you create
• Usage Data: API access logs, authentication events, and feature usage
• AI Interactions: Workout generation requests and training philosophy

3. How We Use Your Information

We use your information to:

• Provide and maintain the Vektor-Strong service
• Authenticate your account via Google OAuth
• Generate personalized workout plans using AI
• Track your fitness progress and analytics
• Enable ChatGPT integration for conversational access to your data
• Improve our services and develop new features

4. Data Storage and Security

Your data is stored securely in our database (Turso). We implement industry-standard security measures including:

• Encrypted data transmission (HTTPS/TLS)
• Secure authentication using JWT tokens and OAuth 2.0
• API key hashing for agent authentication
• User data isolation - you can only access your own data

5. Third-Party Services

We use the following third-party services:

• Google OAuth: For user authentication (Google's Privacy Policy applies)
• OpenRouter/OpenAI: For AI workout generation (their Privacy Policies apply)
• Netlify: For hosting and serverless functions (Netlify's Privacy Policy applies)
• Turso: For database storage (Turso's Privacy Policy applies)

6. ChatGPT Integration

When you authorize Vektor-Strong with ChatGPT:

• ChatGPT can access your fitness data on your behalf
• You control what data ChatGPT can see through the permissions you grant
• You can revoke ChatGPT's access anytime in Settings
• OpenAI's Privacy Policy applies to data processed by ChatGPT

7. Data Sharing

We do not sell your personal data. We only share your data:

• With your explicit consent (e.g., ChatGPT authorization)
• With service providers necessary to operate the service (hosting, database, AI)
• When required by law or to protect our rights

8. Your Rights

You have the right to:

• Access: View all your data in the dashboard
• Edit: Update your workouts, goals, and settings
• Delete: Remove your data or delete your account
• Export: Request a copy of your data
• Revoke: Disconnect ChatGPT or revoke API keys anytime

9. Data Retention

We retain your data for as long as your account is active. If you delete your account, we will delete your personal data within 30 days, except where required by law.

10. Cookies and Tracking

We use localStorage to store your authentication token (JWT) for session management. We do not use tracking cookies or third-party analytics.

11. Children's Privacy

Vektor-Strong is not intended for users under 13 years of age. We do not knowingly collect personal information from children.

12. Changes to This Policy

We may update this privacy policy from time to time. We will notify you of any changes by updating the "Last Updated" date at the top of this policy.

13. Contact Us

If you have questions about this privacy policy or your data, please contact us at:

• Email: sandilya@eventjini.com
• Website: vektor-strong.netlify.app

14. GDPR Compliance (EU Users)

If you are in the European Union, you have additional rights under GDPR:

• Right to data portability
• Right to object to processing
• Right to lodge a complaint with a supervisory authority

By using Vektor-Strong, you agree to this privacy policy.