Privacy Policy
Last updated: October 1, 2025
This Privacy Policy describes how we collect, use, and protect your personal information when you use our AI-powered book cover generation service.
Important: This Service is NOT affiliated with, endorsed by, or sponsored by Amazon.com, Inc. or Kindle Direct Publishing (KDP). KDP is a trademark of Amazon.com, Inc.
1. Account Information
- Email address (for authentication)
- Authentication tokens (via Supabase Auth)
- Account creation date and last login
2. Book and Cover Data
- Book title, subtitle, and author name
- Book specifications (page count, trim size, binding type)
- Cover style preferences
- Generated cover images and PDFs
- Generation history and job status
3. Payment Information
- Payment processing is handled by Stripe
- We do not store credit card numbers
- We store transaction IDs and credit balance
- Purchase history for your account
4. Usage and Analytics Data
- IP address and browser information
- Pages visited and features used
- Time spent on pages
- Device type and operating system
- Referral source
5. API Usage Data
- AI model API calls and responses
- Token usage and generation time
- Error logs and quality check results
We use collected information to:
- Provide and maintain the Service
- Generate AI-powered book covers based on your specifications
- Process payments and manage credits
- Send service-related notifications
- Analyze usage patterns to improve the Service
- Prevent fraud and ensure security
- Comply with legal obligations
- Track costs and optimize AI API usage
We use the following third-party services:
1. Supabase (Database and Authentication)
- Stores user accounts and generated covers
- Privacy Policy: supabase.com/privacy
2. Stripe (Payment Processing)
- Processes all credit card payments
- Privacy Policy: stripe.com/privacy
3. Google Analytics
- Tracks website usage and performance
- Uses cookies to identify users
- Collects demographic and interest data
- Privacy Policy: policies.google.com/privacy
4. Facebook Pixel
- Tracks conversions and user behavior
- Enables targeted advertising
- Builds custom audiences for remarketing
- Privacy Policy: facebook.com/privacy/policy
We use the following types of cookies:
- Essential Cookies: Required for authentication and basic functionality
- Analytics Cookies: Track usage patterns and performance (Google Analytics)
- Advertising Cookies: Enable targeted ads and remarketing (Facebook Pixel)
- Preference Cookies: Remember your settings and choices
You can control cookies through your browser settings. Disabling certain cookies may limit Service functionality.
We take security seriously:
- Data is stored on secure Supabase servers
- All connections use SSL/TLS encryption
- Passwords are never stored (we use magic link authentication)
- Payment data is handled exclusively by Stripe (PCI-compliant)
- Generated covers are stored for your download and history
- API logs are retained for cost tracking and optimization
- Account data: Retained until account deletion
- Generated covers: Stored indefinitely for your access
- Transaction history: Retained for tax and legal compliance (7 years)
- Analytics data: Aggregated and retained per Google Analytics policy
- API logs: Retained for cost analysis purposes
Depending on your location, you may have the right to:
- Access your personal data
- Correct inaccurate data
- Request deletion of your data
- Object to data processing
- Export your data
- Opt out of marketing communications
- Opt out of targeted advertising
To exercise these rights, please contact us through our Contact Page.
Your data may be transferred to and processed in countries other than your country of residence. These countries may have different data protection laws. We ensure appropriate safeguards are in place for such transfers.
Our Service is not intended for users under 18 years of age. We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.
We may update this Privacy Policy from time to time. We will notify you of significant changes by posting the new policy on this page and updating the "Last updated" date. Continued use of the Service after changes constitutes acceptance.
For privacy-related questions or concerns, please contact us through our Contact Page.
Third-Party Disclaimer
This Service is independent and not affiliated with Amazon.com, Inc. or Kindle Direct Publishing. KDP is a trademark of Amazon.com, Inc. We use third-party services (Google Analytics, Facebook Pixel, Stripe, Supabase) which have their own privacy policies.