Privacy Policy

This Privacy Policy describes how TwinEPUB (the “App”) handles user information.

1. Information We Collect

The App does not collect personal information such as your name, address, or phone number.

The App may handle the following information:

• Content of EPUB (and similar) files you import into the App (text, images, etc.)
  
  

• App settings (font size, display preferences, annotation/dictionary settings, etc.)
  
  

• Reading state stored on your device (bookmarks, last reading position, etc.)
  
  

2. How We Use Information

We use the above information only to:

• Provide App features (EPUB rendering, ruby/phonetic annotations, dictionary popups, etc.)
  
  

• Save and restore bookmarks, last position, and settings
  
  

3. Where Data Is Stored

• Imported books, settings, and reading state are stored locally on your device in principle.
  
  

• The App does not send book contents or settings to any developer-operated server.
  
  

4. Sharing with Third Parties

We do not share user information with third parties.

5. Third-Party Services

In principle, the App does not use third-party analytics or advertising services.

(If you add such services, list them here with details and opt-out instructions.)

6. Network Communication

The App does not transmit book content to a developer server during normal use.

However, OS-level features (e.g., file import/share) or user actions may involve other apps or services outside our control.

7. Your Choices & Deletion

You can delete locally stored data (imported books, cache, settings) on your device. For example:

• Use an in-app delete function (if available), or
  
  

• Uninstalling the App will remove associated local data (depending on OS behavior)
  
  

8. Children

If you are a minor, please use the App with parental/guardian consent.

9. Changes to This Policy

We may update this policy from time to time. The updated policy becomes effective when posted on this page.

10. Contact

For inquiries, please use the contact form on this homepage.