Privacy Policy

Introduction

Whitening Guide ("we," "us," or "our") operates whitening.guide (the "Site"). This Privacy Policy explains how we collect, use, disclose, and protect your information when you use our website and teeth whitening analysis service.

Information We Collect

Account Information

When you create an account, we collect:

• Email address
• Name (if provided)
• Profile information (if provided through OAuth providers like Google or Apple)

Account authentication is managed through Clerk, a third-party authentication service. Please review Clerk's Privacy Policy at clerk.com/legal/privacy.

Analysis Data

When you use our teeth whitening analysis feature, we collect and store:

• Photos of your teeth that you upload
• Questionnaire responses (sensitivity level, timeline preferences, budget, habits)
• Analysis results and recommendations generated for you
• Date and time of analysis

Usage Data

We automatically collect certain information when you visit our Site:

• IP address (anonymized)
• Browser type and version
• Pages visited and time spent on pages
• Referral source (how you found our Site)
• Device type and operating system

We use Vercel Analytics to collect this data. Vercel's privacy policy is available at vercel.com/legal/privacy-policy.

How We Use Your Information

We use the information we collect to:

• Provide personalized teeth whitening recommendations
• Analyze your teeth photos to determine shade and condition
• Store your analysis history for future reference
• Enforce usage limits (1 free analysis per month per user)
• Improve our analysis algorithms and recommendations
• Communicate with you about your account or service updates
• Monitor and analyze Site usage and trends
• Prevent fraud and abuse

Data Storage and Security

Your data is stored securely using industry-standard encryption and security practices:

• User data is stored in a PostgreSQL database hosted by Neon
• Photos are stored on Vercel's infrastructure
• All data transmission is encrypted using HTTPS/TLS
• Access to user data is restricted to authorized personnel only

While we implement reasonable security measures, no method of transmission over the Internet is 100% secure. We cannot guarantee absolute security of your data.

Data Sharing and Disclosure

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

• Service Providers: Clerk (authentication), Vercel (hosting and analytics), Neon (database), Google (vision analysis API)
• Legal Requirements: When required by law, court order, or to protect our rights
• Business Transfers: In connection with a merger, sale, or acquisition

Third-Party Services

Our Site uses third-party services that may collect information:

• Clerk: Authentication and user management
• Google Gemini API: Image analysis for teeth photos
• Vercel: Hosting and analytics
• Neon: Database hosting

When you click affiliate links to retailers (Amazon, Target, etc.), you leave our Site and are subject to those retailers' privacy policies.

Your Rights and Choices

You have the right to:

• Access the personal information we hold about you
• Request correction of inaccurate data
• Request deletion of your account and associated data
• Object to or restrict certain processing of your data
• Export your data in a portable format
• Withdraw consent for data processing

To exercise these rights, contact us at contact@whitening.guide.

Data Retention

We retain your information for as long as your account is active or as needed to provide services. You may request deletion of your account at any time. After deletion:

• Your account information will be permanently deleted within 30 days
• Your uploaded photos will be permanently deleted
• Anonymized usage data may be retained for analytics

Cookies and Tracking

We use essential cookies for authentication (managed by Clerk) and analytics (Vercel Analytics). These cookies are necessary for the Site to function properly. We do not use advertising or tracking cookies.

Children's Privacy

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

International Users

Your information may be transferred to and processed in the United States or other countries where our service providers operate. By using our Site, you consent to such transfers.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by posting a notice on our Site or sending an email. Your continued use of the Site after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions about this Privacy Policy or our data practices, contact us at:

Email: contact@whitening.guide