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Privacy Policy

Last updated: November 22, 2025

1. Introduction

Welcome to ShelfControl ("we," "our," or "us"). We are committed to protecting your personal information and your right to privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application (the "App") and website. By accessing or using the App, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect

A. Personal Information

When you choose to create an account to use our Cloud Sync features, we collect certain personal information via Google Sign-In:

  • Name: Used to personalize your profile.
  • Email address: Used to uniquely identify your account and provide account recovery or support.
  • Profile picture (optional): Displayed on your user profile.

We do not collect or store passwords. Authentication is handled securely through Google's OAuth 2.0 service.

B. Usage Data & Library Data

We collect information about how you interact with the App to provide the core functionality:

  • Book library: Titles, authors, cover images, reading status (for example, Reading or Completed), and ratings you add.
  • Device information: Non-personal identifiers such as device model and operating system version to help us diagnose crashes.

3. How We Use Your Information

We use the information we collect to:

  • Provide the Service, including creating your account, syncing your library across devices, and saving reading progress.
  • Maintain and authenticate your account.
  • Improve the App by analyzing usage trends and resolving issues through crash reporting tools.
  • Respond to inquiries or support requests.

4. Third-Party Services

We work with the following third-party providers solely to operate the App:

  • Google Sign-In: Handles user authentication.
  • Google Books API: Supplies book details when you perform searches.
  • Firebase / Google Cloud: Securely stores your library data.

We do not sell, trade, or rent your personal identification information to others.

5. Data Retention & Deletion

We retain personal information only as long as necessary for the purposes described in this Privacy Policy.

You may request deletion of your account and all associated data at any time:

  • In-app: Use the “Delete Account” option in Settings.
  • By email: Contact admin@shelfcontrol.app with the subject “Delete My Account,” and we will remove your data within 30 days.

6. Security of Your Data

We employ administrative, technical, and physical safeguards to protect your personal information. However, no method of transmission over the internet is absolutely secure, and we cannot guarantee absolute security.

7. Children's Privacy

The App is not intended for children under 13. We do not knowingly collect personal information from children under 13. If we learn that such information has been provided, we will delete it immediately.

8. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will post any changes on this page and update the “Last updated” date above. Please review this page periodically for updates.

9. Contact Us

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

Email: admin@shelfcontrol.app