Privacy Policy

Last updated: December 20, 2025

1. Introduction

Welcome to Biorhyth.me ("we," "our," or "us"). We are committed to protecting your privacy and personal data. This Privacy Policy explains how we collect, use, and safeguard your information when you use our biorhythm calculation service.

2. Information We Collect

We collect the following personal information to provide our services:

2.1 Information You Provide

  • Email Address: When you subscribe to our weekly biorhythm updates
  • Date of Birth: Required to calculate your personal biorhythm cycles

2.2 Information Collected Automatically

  • IP Address: Collected when you interact with our service
  • User Agent: Browser and device information
  • Timestamps: Date and time of your interactions

2.3 Information from Third-Party Login Providers

If you choose to sign in using a social login provider (Google, Facebook, Twitter, Apple, GitHub, LinkedIn, VK, Yandex, or WeChat), we receive your email address and a unique identifier from that provider. We do not receive or store your password from these services.

3. How We Use Your Information

We use your personal information solely to:

  • Calculate and display your personal biorhythm cycles
  • Send you weekly biorhythm updates (if you have subscribed)
  • Process your subscription confirmations and unsubscribe requests
  • Maintain the security and integrity of our service
  • Comply with legal obligations

4. Data Sharing and Disclosure

We do not sell, rent, trade, or share your personal data with any third parties.

Your information is used exclusively to provide you with our biorhythm calculation service and related communications. We will never share your email address, date of birth, or any other personal information with advertisers, marketing companies, or any other third parties.

The only exceptions to this policy are:

  • When required by law or legal process
  • To protect our rights, privacy, safety, or property
  • In connection with a merger, acquisition, or sale of assets (in which case you will be notified)

5. Cookies

We use a single essential cookie:

  • Session Cookie: A temporary cookie used to maintain your session when you sign in with a social login provider (Google, Facebook, etc.). This cookie is essential for the authentication process and expires after 7 days or when you close your browser.

We do not use any tracking cookies, advertising cookies, or analytics cookies. We do not use any third-party tracking services.

6. Data Retention

We retain your personal data for as long as you maintain an active subscription to our service. If you unsubscribe, we will retain a record of your email address in our suppression list to ensure we do not send you future emails, as required for compliance with anti-spam regulations.

You may request complete deletion of your data by contacting us at hello@biorhyth.me.

7. Data Security

We implement appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction. All data transmission is encrypted using SSL/TLS protocols.

8. Your Rights

You have the right to:

  • Access: Request a copy of the personal data we hold about you
  • Rectification: Request correction of inaccurate personal data
  • Erasure: Request deletion of your personal data
  • Unsubscribe: Opt out of email communications at any time using the unsubscribe link in any email or visiting our unsubscribe page

To exercise any of these rights, please contact us at hello@biorhyth.me.

9. International Users

Our service is available internationally. By using our service, you consent to the transfer and processing of your data in accordance with this Privacy Policy.

10. Children's Privacy

Our service is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

11. Changes to This Policy

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

12. Contact Us

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

Email: hello@biorhyth.me