HormoneSync AI/ Cookie Policy

Cookie Policy

Last updated: August 21, 2026 | Effective Date: August 21, 2026

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AI-Generated Content Notice

HormoneSync AI uses artificial intelligence to generate personalized health recommendations. All AI-generated content is provided for informational and educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before making health-related decisions.

1. What Are Cookies?

Cookies are small text files that are stored on your device (computer, tablet, or mobile phone) when you visit a website. They are widely used to make websites work more efficiently, provide a better user experience, and supply information to the website owners. This Cookie Policy explains how HormoneSync AI uses cookies and similar technologies when you access our Service.

2. How We Use Cookies

We use cookies for the following purposes:

Essential Cookies (Required)

These cookies are necessary for the Service to function properly. They enable core functionality such as user authentication, session management, security, and maintaining your preferences (language, theme). Disabling these cookies may prevent the Service from working correctly.

  • __session — Maintains your authenticated session (HTTP-only, Secure, SameSite=Strict)
  • hs_locale — Stores your language preference (en/si)
  • hs_consent — Records your cookie consent choice
  • __csrf_token — Prevents Cross-Site Request Forgery attacks

Analytics Cookies (Optional)

We use privacy-respecting analytics to understand how users interact with our platform. All analytics data is anonymized and aggregated. We do NOT use Google Analytics or any third-party analytics that tracks users across websites. Our analytics help us improve the AI models, fix bugs, and optimize the user experience.

  • hs_anon_id — Anonymous identifier for aggregated usage analysis (anonymized, no PII)
  • hs_prefs — Stores your feature usage preferences for UI optimization

Functional Cookies (Optional)

These cookies remember your choices and preferences to provide a more personalized experience, such as remembering your last visited section, sidebar state, and dashboard layout preferences.

We do NOT use advertising cookies, marketing trackers, or sell data to ad networks. We do NOT use cookies for cross-site tracking, retargeting, or behavioral advertising.

3. Third-Party Services

The following third-party services may set cookies when you use our Service:

  • Stripe, Inc.: Payment processing. Stripe sets cookies to facilitate secure payment transactions when you subscribe to a plan. These cookies are governed by Stripe's own privacy policy.
  • Cloudflare, Inc.: Content delivery and security. Cloudflare may set cookies for bot protection, DDoS mitigation, and performance optimization (e.g., __cf_bm, cf_clearance).

4. Your Cookie Rights

Depending on your jurisdiction, you have the following rights regarding cookies:

  • GDPR (EU/EEA): You have the right to be informed about cookies, the right to withdraw consent at any time, and the right to refuse non-essential cookies. We present a cookie consent banner on your first visit.
  • CCPA (California, USA): You have the right to know what personal information is collected, the right to delete your personal information, and the right to opt out of the sale of personal information. We do not sell personal information.
  • PDPA (Sri Lanka): You have rights regarding the processing of your personal data, including the right to access and the right to withdraw consent.

You can manage or delete cookies through your browser settings. Note that disabling essential cookies may affect the functionality of the Service. For more information about managing cookies in your browser, visit www.allaboutcookies.org.

5. Data Stored Locally

HormoneSync AI uses your browser's localStorage to store application state data (such as your quiz answers and UI preferences) for a better user experience. This data never leaves your device and is not transmitted to our servers unless you create an account and sync it. You can clear this data at any time through your browser settings or by using the "Clear Data" option in the app settings.

6. Changes to This Policy

We may update this Cookie Policy from time to time to reflect changes in technology, legislation, or our data practices. We will notify you of any material changes by posting the updated policy on this page and updating the "Last updated" date. Your continued use of the Service after changes become effective constitutes acceptance of the updated policy.

7. Contact Us

If you have any questions about our use of cookies, please contact us: