Privacy Policy

SubstackGrow ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Service.

1. Information We Collect

1.1 Information You Provide

• Account Information: Name, email address, password
• Payment Information: Processed securely by Paddle (we do not store card details)
• Content: Headlines you submit for analysis
• Communications: Messages you send to our support team

1.2 Automatically Collected Information

• Usage Data: Pages visited, features used, time spent
• Device Information: Browser type, operating system, IP address
• Cookies: Small files stored on your device for authentication and preferences

2. How We Use Your Information

We use the information we collect to:

• Provide, maintain, and improve the Service
• Process your headline analyses using AI
• Manage your account and subscription
• Send service-related notifications and updates
• Respond to your support requests
• Analyze usage patterns to improve the Service
• Detect and prevent fraud or abuse
• Comply with legal obligations

3. How We Share Your Information

We do not sell your personal information. We may share your information with:

• Service Providers: Paddle (payments), Clerk (authentication), Supabase (database), Anthropic (AI processing)
• Legal Requirements: When required by law or to protect our rights
• Business Transfers: In connection with a merger, acquisition, or sale of assets

4. Data Security

We implement industry-standard security measures to protect your information:

• Encryption of data in transit (HTTPS/TLS)
• Encryption of data at rest
• Secure authentication through Clerk
• Regular security audits and updates
• Access controls and monitoring

However, no method of transmission over the Internet is 100% secure. We cannot guarantee absolute security.

5. Data Retention

We retain your information for as long as your account is active or as needed to provide the Service. You may request deletion of your account and data at any time by contacting us at support@substackgrow.com.

6. Your Privacy Rights

You have the right to:

• Access: Request a copy of your personal data
• Correction: Update or correct inaccurate data
• Deletion: Request deletion of your data
• Export: Receive your data in a portable format
• Opt-out: Unsubscribe from marketing emails
• Object: Object to certain processing of your data

To exercise these rights, contact us at support@substackgrow.com.

7. Cookies and Tracking

We use cookies and similar technologies to:

• Keep you logged in
• Remember your preferences
• Analyze how you use the Service
• Improve performance and user experience

You can control cookies through your browser settings, but disabling them may affect functionality.

8. Third-Party Services

Our Service uses third-party services that have their own privacy policies:

• Paddle: Payment processing - Privacy Policy
• Clerk: Authentication - Privacy Policy
• Anthropic: AI processing - Privacy Policy
• Supabase: Database - Privacy Policy

9. Children's Privacy

Our Service is not intended for children under 13. We do not knowingly collect information from children. If you believe we have collected information from a child, please contact us immediately.

10. International Data Transfers

Your information may be transferred to and processed in countries other than India. We ensure appropriate safeguards are in place to protect your data in accordance with this Privacy Policy.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by email or through the Service. Your continued use after changes constitutes acceptance.

12. Contact Us

For questions about this Privacy Policy or to exercise your privacy rights, contact us: