Privacy Policy

Last Updated: September 30, 2025

1. Introduction

This Privacy Policy explains how information may be collected, used, and disclosed in relation to this book and any associated materials, resources, or services.

2. Information Collection

2.1 Direct Purchases via Rudrank Academy

When you purchase this book directly from the author through Rudrank Academy (academy.rudrank.com):

The platform is powered by Fermion (fermion.app), a whitelabel online education platform
Payment processing is handled securely through Stripe or PayPal via Fermion
The author does not store your payment card information - all payment data is processed by Stripe/PayPal
Basic purchase information (email address, name) may be collected to deliver the book and provide customer support
Fermion supports transactions in 180+ countries with 20+ payment methods
Your payment information is subject to Stripe's Privacy Policy, PayPal's Privacy Policy, and Fermion's Privacy Policy

2.2 Book Content

The book itself:

Does not collect, transmit, or store any personal information
Does not contain tracking mechanisms
Does not require internet connectivity to read (except for platform-specific features)

3. Use of Information

Any information collected may be used to:

Deliver the book and related materials to you
Respond to customer support inquiries
Send important updates about the book (e.g., errata, new editions)
Improve future editions and related products
Comply with legal obligations

4. Email Communications

If you provide your email address:

You may receive transactional emails (purchase confirmations, download links)
You may receive occasional updates about the book or related products
You can opt out of non-transactional emails at any time
Your email will not be sold or shared with third parties for marketing purposes

5. Code Examples and External Resources

5.1 Sample Code

Sample code repositories may be hosted on platforms like GitHub
Accessing these repositories is subject to those platforms' privacy policies
No personal information is required to view or download sample code

5.2 External Links

This book may contain links to external websites or resources
The author is not responsible for the privacy practices of external sites
Review the privacy policies of any external sites you visit

6. Data Storage and Security

Any data collected is stored securely using industry-standard practices
Access to personal information is limited to authorized personnel only
However, no method of electronic storage is 100% secure

7. Data Retention

Personal information is retained only as long as necessary to fulfill the purposes outlined in this policy
You may request deletion of your information by contacting the author

8. Your Rights

Depending on your jurisdiction, you may have rights including:

Access to your personal information
Correction of inaccurate information
Deletion of your information
Objection to processing of your information
Data portability

To exercise these rights, please contact the author through the channels provided in the book.

9. Children's Privacy

This book is not directed at children under the age of 13. The author does not knowingly collect personal information from children under 13.

10. International Users

If you are accessing this book from outside the author's country of residence, please be aware that your information may be transferred to, stored, and processed in different countries. By using this book, you consent to such transfers.

11. Third-Party Services

This book may reference or integrate with third-party services:

Apple platforms and services (subject to Apple's Privacy Policy)
GitHub (subject to GitHub's Privacy Policy)
Other development tools and platforms mentioned in the book

The author is not responsible for the privacy practices of these third-party services.

12. Cookies and Tracking

The book itself does not use cookies or tracking technologies. However:

If you access companion websites or resources, those may use cookies
Third-party platforms where the book is sold may use their own tracking technologies

13. Analytics

The author may collect aggregated, non-personally identifiable information about book sales and distribution
This information is used solely to understand readership and improve future editions

14. Changes to This Privacy Policy

The author reserves the right to update this Privacy Policy at any time. Changes will be reflected in the "Last Updated" date. Continued use of the book after changes constitutes acceptance of the updated policy.

15. Legal Compliance

The author will disclose personal information if required by law or in response to valid legal requests from authorities.

16. Contact Information

For questions or concerns about this Privacy Policy or to exercise your privacy rights, please contact the author through the channels provided in the book or on the author's website.

17. GDPR Compliance (European Users)

For users in the European Union:

Legal basis for processing: Contract performance, legitimate interests, and consent
Data controller: The author of this book
Right to lodge a complaint with your local data protection authority

18. CCPA Compliance (California Users)

For California residents:

You have the right to know what personal information is collected
You have the right to request deletion of your personal information
You have the right to opt-out of the sale of personal information (note: the author does not sell personal information)