Privacy Policy

1. Introduction

Zetyra (“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 statistical design calculator platform at zetyra.com.

2. Information We Collect

Account Information

When you create an account, we collect your email address and authentication credentials. If you subscribe to our Pro plan, we collect payment information through our payment processor, Stripe.

Calculation Data

When you use our calculators, we process the statistical parameters you input (such as sample sizes, effect sizes, and correlation values). This data is used solely to perform calculations and is not stored permanently unless you explicitly save your work.

Analytics Data

With your consent, we use Google Analytics to collect anonymized usage data, including pages visited, time spent on the site, and general geographic location. This helps us improve our services.

Cookies

We use essential cookies for authentication and session management. Analytics cookies are only enabled with your explicit consent via our cookie banner.

3. How We Use Your Information

• To provide and maintain our statistical calculation services
• To process your subscription and payments
• To send transactional emails (account verification, password reset, billing receipts)
• To improve our platform based on usage patterns (with your consent)
• To respond to your support inquiries

4. Third-Party Services

We use the following third-party services:

• Supabase: Authentication and database services (US-based)
• Stripe: Payment processing (PCI-DSS compliant)
• Google Analytics: Website analytics (with consent only)
• Vercel: Hosting and content delivery

Each service has its own privacy policy governing their use of your data.

5. Data Security

We implement industry-standard security measures including HTTPS encryption, secure authentication, and regular security audits. Payment information is processed directly by Stripe and never touches our servers.

6. Data Retention

We retain your account information for as long as your account is active. Calculation inputs are processed in real-time and not permanently stored unless you save them. You can request deletion of your account and associated data at any time.

7. Your Rights

Depending on your location, you may have the right to:

• Access the personal data we hold about you
• Request correction of inaccurate data
• Request deletion of your data
• Withdraw consent for analytics tracking
• Export your data in a portable format
• Object to certain processing activities

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

8. International Transfers

Your data may be processed in the United States where our service providers are located. We ensure appropriate safeguards are in place for any international data transfers.

9. Children's Privacy

Our services are not intended for users under 16 years of age. We do not knowingly collect personal information from children.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on this page and updating the “Last updated” date.

11. Contact Us

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

Email: support@zetyra.com