Privacy Policy

Last updated: February 12, 2026

1. Introduction

Sigma Prep LLC ("we," "us," or "our") operates Sigma Prep. This Privacy Policy explains how we collect, use, and protect your personal information when you use our Service.

2. Information We Collect

Account Information

When you create an account, we collect your name, email address, and password. Passwords are securely hashed and never stored in plain text.

Payment Information

Payment processing is handled by Stripe. We do not store your credit card number, CVV, or other sensitive payment details on our servers. Stripe's privacy policy governs the handling of your payment information.

Usage Data

We collect data about how you use the Service, including videos watched, practice quiz scores, and progress metrics. This data is used to provide personalized learning features and track your progress.

3. How We Use Your Information

We use your information to:

  • Provide and maintain the Service
  • Process payments and manage subscriptions
  • Track your learning progress and personalize your experience
  • Send important account notifications
  • Improve the Service based on usage patterns

4. Data Sharing

We do not sell your personal information. We share data only with the following third-party services that are essential to operating the Service:

  • Supabase — database and authentication
  • Stripe — payment processing
  • Vercel — hosting
  • Vimeo — video delivery

5. Data Security

We implement industry-standard security measures to protect your data, including encrypted connections (HTTPS), secure authentication, and access controls. However, no method of transmission over the internet is 100% secure, and we cannot guarantee absolute security.

6. Cookies

We use essential cookies to maintain your authentication session and remember your preferences. We do not use advertising or third-party tracking cookies.

7. Your Rights

You have the right to:

  • Access the personal data we hold about you
  • Request correction of inaccurate data
  • Request deletion of your account and associated data
  • Cancel your subscription at any time

To exercise any of these rights, contact us at support@sigmaprep.io.

8. Children's Privacy

The Service is intended for students preparing for the SAT. If you are under 13 years of age, you must have a parent or guardian's consent to use the Service. We do not knowingly collect personal information from children under 13 without parental consent.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on the Service. Your continued use of the Service after changes are posted constitutes acceptance of the revised policy.

10. Contact

If you have questions about this Privacy Policy, please contact us at support@sigmaprep.io.