Cookie Policy

Last updated: 27 January 2026

This Cookie Policy explains what cookies are, which cookies we use, and how you can manage them.

1. What Are Cookies?

Cookies are small text files that are stored on your device (computer, phone, tablet) when you visit a website. They help websites remember information about your visit, like your login status and preferences.

Cookies can be "persistent" (stay on your device until they expire or you delete them) or "session" (deleted when you close your browser).

2. What Cookies We Use

✓ Essential Cookies (Required)

These cookies are necessary for HerRhythm to function properly. You cannot disable them because the website wouldn't work without them.

Authentication Cookies

  • Purpose: Keep you logged in to your HerRhythm account
  • Provider: Supabase (our authentication service)
  • Cookie names: sb-access-token, sb-refresh-token
  • Duration: Session-based and persistent (up to 7 days)
  • Type: First-party cookies

Session Management

  • Purpose: Maintain your session and prevent security issues
  • Provider: Next.js (our web framework)
  • Duration: Session-based (deleted when you close browser)
  • Type: First-party cookies

✗ What We DON'T Use

HerRhythm currently does NOT use:

  • Advertising cookies - We don't show you ads or sell your data to advertisers
  • Social media tracking cookies - No Facebook Pixel, Twitter tracking, etc.
  • Third-party marketing cookies - We don't share your data with marketing companies
  • Analytics cookies - We currently don't use Google Analytics or similar tools

If we add analytics in the future, we'll update this policy and ask for your consent first.

3. Why We Use Cookies

We use essential cookies for the following purposes:

Keep You Logged In

Authentication cookies remember that you've logged in, so you don't have to re-enter your password every time you visit a new page.

Security

Session cookies help prevent security attacks like cross-site request forgery (CSRF) and protect your account.

Functionality

Cookies help HerRhythm remember your preferences and provide a smooth experience as you navigate between pages.

Load Balancing

Technical cookies help our hosting provider (Vercel) distribute traffic efficiently so the website loads quickly.

4. Third-Party Cookies

Third-party cookies are set by services we use (not directly by HerRhythm). Here's what you should know:

Supabase (Authentication & Database)

Supabase sets cookies to manage your authentication session. These are essential for logging in.

Learn more: Supabase Privacy Policy

Vercel (Web Hosting)

Vercel may set cookies for performance optimization and security purposes.

Learn more: Vercel Privacy Policy

5. How to Manage or Delete Cookies

Browser Settings

You can control cookies through your browser settings. Most browsers allow you to:

  • View what cookies are stored
  • Delete all cookies or specific cookies
  • Block cookies from specific websites
  • Block all cookies (not recommended for HerRhythm)

Important: If you disable essential cookies, HerRhythm will not work properly. You won't be able to log in or use personalized features.

How to Delete Cookies in Different Browsers

Google Chrome

Settings → Privacy and security → Cookies and other site data → See all site data and permissions

Safari

Preferences → Privacy → Manage Website Data

Firefox

Settings → Privacy & Security → Cookies and Site Data → Manage Data

Microsoft Edge

Settings → Privacy, search, and services → Cookies and site permissions → Manage cookies

6. Changes to This Cookie Policy

If we start using different types of cookies (e.g., analytics cookies), we'll update this policy and notify you. The "Last updated" date at the top will reflect the most recent version.

7. Contact Us

If you have questions about our use of cookies:

Privacy PolicyTerms of ServiceHow to Delete Your DataContactBack to HerRhythm