Privacy Policy for Pertukakem

Last updated: November 1, 2026

Pertukakem ("the app") is a free app for reading PDF books. This policy explains what information the app uses.

1. Information we collect

We do not ask you to create an account and we do not collect your name, email address, phone number or location.

To deliver notifications, the app uses Firebase Cloud Messaging (Google), which creates an anonymous app-installation token on your device. This token is used only to send you notifications about new books and updates.

When you browse the library or download a book, your device connects to Google Firebase and Cloudflare servers. Like any internet service, they may process your IP address and standard technical request data for security and operation.

2. Information stored on your device

Downloaded books, your reading position, your settings (theme, font, text size, notifications) and a copy of the book list are stored only on your device. We do not receive this data. It is deleted when you uninstall the app.

3. Notifications

You can turn notifications off at any time in the app's Settings or in your device settings.

4. What we do not do

The app contains no ads and no analytics, and we do not sell or share your information with third parties for advertising or marketing.

5. Third-party services

The app uses Google Firebase (firebase.google.com/support/privacy) and Cloudflare (cloudflare.com/privacypolicy). These services have their own privacy policies.

6. Children

The app is not directed at children under 13 and does not knowingly collect their information.

7. Changes

We may update this policy. Changes will be posted on this page with a new date.

8. Contact

If you have questions, contact us at: yunismaruf.work@gmail.com