Privacy Policy

Amur ("we", "our", or "us") is a personal AI fitness coaching service operated by 621 Labs. This policy explains what data we collect, how we use it, and your rights.

1. Data we collect

Amur collects fitness and health data that you authorize through connected third-party services, including:

• WHOOP: recovery score, HRV, sleep duration and quality, strain, and workout data
• Strava: workout activities (type, duration, distance, pace, heart rate)
• Withings: body weight and body composition measurements
• Apple Health: activity, sleep, and health metrics read directly from HealthKit

We also collect authentication information when you sign in:

• Google Sign-In: your email address and name, passed to Clerk for account creation and authentication
• Sign in with Apple: your email address and name (Apple may provide an anonymized relay address), passed to Clerk for account creation and authentication

We also collect information you provide directly during onboarding: your name, fitness goals, training availability, injury history, and self-reported lifestyle information.

2. How we use your data

Your data is used solely to provide personalized AI fitness coaching, including:

• Generating weekly training plans tailored to your goal and recovery state
• Sending coaching check-ins and adjustments via the iOS app
• Monitoring daily recovery and alerting you when training load should be adjusted

We do not sell your data, use it for advertising, or share it with third parties beyond what is necessary to operate the service.

3. Data storage

Your data is stored in a secure database hosted on Railway (railway.app). Health metrics are stored in aggregated form (daily summaries). We do not store raw wearable data beyond what is needed for coaching.

4. Third-party integrations

Amur connects to WHOOP, Strava, and Withings via their official OAuth APIs. You authorize each connection individually and can revoke access at any time through the respective platform's settings. We only request the minimum scopes required for coaching purposes.

We also use RevenueCat to manage subscriptions. RevenueCat stores your purchase history and a device identifier solely for the purpose of tracking and restoring your subscription status. See RevenueCat's privacy policy at rev.cat/privacy for details.

5. Data retention

We retain your data for as long as your account is active. If you request account deletion, we will remove your personal data and health records within 30 days.

6. Your rights

You have the right to:

• Request a copy of your data
• Request correction of inaccurate data
• Request deletion of your data and account
• Revoke access to any connected third-party service at any time

To exercise any of these rights, contact us at admin@621labs.com.

7. Not medical advice

Amur provides fitness coaching guidance for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting a new exercise program or making changes to your health routine.

8. Changes to this policy

We may update this policy from time to time. We will notify active users of material changes via email or in-app notification. Continued use of the service after changes constitutes acceptance of the updated policy.

9. Contact

Questions about this policy? Reach us at admin@621labs.com.