Privacy Policy

Last updated: March 26, 2026

1. Introduction

Cardiac Rhythm Simulator ("we," "us," or "our") is operated by ShadeTree.IT LLC. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our website and services (the "Service"). By accessing or using the Service, you agree to the terms of this Privacy Policy.

2. Information We Collect

We collect the following types of information:

  • Account Information: When you register using social login or email link authentication, we collect your email address for account identification purposes only. We do not collect or store your name or profile identifiers.
  • User-Generated Content: Custom rhythms, quiz responses, simulator preferences, and other content you create while using the Service.
  • Usage Data: Information about how you interact with the Service, including pages visited, features used, and time spent on the platform.
  • Device Information: Browser type, operating system, and device identifiers used to access the Service.
  • Cookies and Similar Technologies: We use cookies and local storage to maintain your session, remember preferences, and improve your experience.

3. How We Use Your Information

We use collected information to:

  • Provide, maintain, and improve the Service
  • Authenticate your identity and manage your account
  • Save your preferences, custom rhythms, and learning progress
  • Communicate with you about the Service, including support inquiries
  • Send you information about other products and services offered by ShadeTree.IT LLC
  • Analyze usage patterns to improve user experience
  • Comply with legal obligations

4. Data Sharing and Disclosure

We do not sell your personal information. We may share your data with:

  • Authentication Providers: Third-party providers (such as Google) for social login functionality
  • Hosting Providers: Firebase (Google) for data storage and hosting
  • Legal Requirements: When required by law, regulation, or legal process
  • Business Transfers: In connection with a merger, acquisition, or sale of assets

5. Communication Consent

By using the Service, you agree to receive communications from ShadeTree.IT LLC regarding other products, services, and offerings that may be of interest to you. You may opt-out of marketing communications at any time by contacting support@cardiacrhythmsim.com or by using the unsubscribe link in any marketing email. This consent is separate from Service-related communications which are necessary for the operation of your account.

6. Data Retention

We retain your account information for as long as your account is active. You may request deletion of your account and associated data at any time by contacting us at support@cardiacrhythmsim.com. For more details, see our Data Deletion Policy.

7. Data Security

We implement reasonable technical and organizational measures to protect your personal information. However, no method of transmission over the Internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

8. Children's Privacy

The Service is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If we learn that we have collected information from a child under 13, we will take steps to delete such information.

9. Your Rights

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

  • Access the personal information we hold about you
  • Request correction of inaccurate information
  • Request deletion of your personal information
  • Object to or restrict processing of your information
  • Withdraw consent at any time

To exercise any of these rights, contact us at support@cardiacrhythmsim.com.

10. Third-Party Links

The Service may contain links to third-party websites, including educational resources and the PhysioNet database. We are not responsible for the privacy practices of these third-party sites. We encourage you to review their privacy policies before providing any personal information.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on this page and updating the "Last updated" date. Your continued use of the Service after such changes constitutes your acceptance of the revised policy.

12. Contact Us

If you have questions about this Privacy Policy, please contact us at:

ShadeTree.IT LLC
Email: support@cardiacrhythmsim.com