Privacy Policy

Last Updated: January 17, 2026

This Privacy Policy describes how Bookshelf ("we," "us," or "our") collects, uses, and protects your information when you use the Bookshelf mobile application ("App").

1. Information We Collect

We may collect the following types of information:

Account Information: Email address and display name when you create an account.
Reading Data: Books in your library, reading progress, and bookmarks to provide the App's core functionality.
Device Information: Device type, operating system version, and XTEINK device identifiers for synchronization purposes.
Subscription Data: Purchase history and subscription status, managed through RevenueCat and the Apple App Store.
Theme Preferences: Custom widget themes, color selections, and font choices.

2. How We Use Your Information

We use your information to:

Provide and maintain the App's functionality
Synchronize your reading data with your XTEINK X4 device
Process and manage your Premium subscription
Store and sync your custom theme configurations
Improve and optimize the App experience
Communicate with you about updates or issues

3. Data Storage and Security

Your data is stored securely and we implement appropriate technical measures to protect your personal information. Reading data and preferences are stored locally on your device and synced to your XTEINK device as needed.

4. Third-Party Services

The App uses the following third-party services that may collect information:

RevenueCat: Manages subscriptions and processes billing. See RevenueCat's Privacy Policy.
Apple App Store: Handles app distribution and in-app purchases. See Apple's Privacy Policy.

5. Data Sharing

We do not sell your personal information. We may share your data only in these circumstances:

With third-party service providers listed above, as necessary to operate the App
If required by law or legal process
To protect the rights and safety of our users

6. Your Rights

You have the right to:

Access the personal data we hold about you
Request correction of inaccurate data
Request deletion of your data
Export your reading data
Opt out of non-essential data collection

7. Data Retention

We retain your data for as long as your account is active or as needed to provide the App's services. If you delete your account, we will remove your personal data within 30 days, except where retention is required by law.

8. Children's Privacy

The App is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of changes by updating the "Last Updated" date and, for material changes, by sending a notification through the App.

10. Contact Us

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

Email: hola@jorrge.xyz