Privacy Policy

TwinCalc collects minimal personal information:

• Newsletter subscription: If you subscribe to our newsletter, we collect your email address via Netlify Forms.
• Calculator inputs: All data entered into the twin probability calculator is processed entirely in your browser. We do not collect, store, or transmit any health-related information you provide.

We use your information solely for the following purposes:

• Newsletter delivery: To send you updates about twin pregnancy research, new features, and relevant content.
• Service improvement: Aggregated, anonymous usage data (page views) may be used to improve the site experience.

We do not sell, rent, or share your personal information with third parties for marketing purposes.

TwinCalc uses minimal or no cookies:

• No tracking cookies: We do not use advertising or tracking cookies.
• No third-party analytics: We do not use Google Analytics or similar tracking services.
• Essential cookies only: Any cookies used are strictly necessary for site functionality (e.g., language preference).

TwinCalc uses the following third-party services:

• Netlify: Our website is hosted on Netlify. Netlify may collect standard server logs (IP address, browser type, referring page) as part of their hosting service. See Netlify's Privacy Policy.

We do not integrate any advertising networks, social media trackers, or third-party analytics tools.

We retain your data as follows:

• Newsletter emails: Stored by Netlify Forms for as long as you remain subscribed.
• Calculator data: Not retained. All calculations are performed client-side and no data is sent to our servers.

You have the following rights regarding your personal data:

• Unsubscribe: You can unsubscribe from our newsletter at any time using the link in each email.
• Data deletion: You can request deletion of your email from our records by contacting us at privacy@twin-chance.com.
• Access: You can request a copy of any personal data we hold about you.
• Correction: You can request correction of any inaccurate personal data.

For any privacy-related questions or requests, please contact us at:

privacy@twin-chance.com

We aim to respond to all privacy inquiries within 30 days.

We may update this privacy policy from time to time to reflect changes in our practices or applicable laws. When we make significant changes, we will update the "Last updated" date at the top of this page.

We encourage you to review this policy periodically to stay informed about how we protect your information.