CHM Reader

Privacy Policy

Effective date: June 17, 2026

CHM Reader (“we”, “our”, or “us”) respects your privacy. This Privacy Policy explains how we handle information when you use our application (“App”). We are committed to protecting your personal data and being transparent about our practices.

This policy applies to all versions of CHM Reader, whether accessed via mobile devices, desktops, or any other platform where the App is available. By using CHM Reader, you agree to the collection and use of information in accordance with this policy.

1. Information We Do Not Collect

CHM Reader is designed with your privacy in mind. We do not collect, store, or transmit any personal data such as your name, email address, phone number, device identifiers, or location data.

The App does not require an account, and we do not track your usage across different apps or websites. All processing of CHM files happens locally on your device.

2. Local File Access

To display CHM files, the App requires read access to the files you choose to open. This access is strictly local and is used only to render the content within the App. No file content is ever uploaded, shared, or transmitted to us or any third party.

3. Permissions

CHM Reader may request certain permissions to enable core functionality. Each permission is used solely for the purpose described:

We do not access your camera, microphone, contacts, or any other sensitive data. Permissions are requested only when needed, and you may decline them.

4. Third-Party Services

CHM Reader does not integrate with any third-party analytics, advertising, or crash-reporting SDKs. We do not use cookies, tracking pixels, or any similar technologies.

If the App includes links to external websites (e.g., help documentation), those sites operate under their own privacy policies. We encourage you to review them before providing any personal information.

5. Data Security

Since we do not collect or store your data on any server, the primary security risk is local to your device. We recommend that you:

All processing is performed locally, and no data leaves your device unless you explicitly choose to share it via system-level actions (e.g., sharing a file through another app).

6. Children’s Privacy

CHM Reader does not knowingly collect any information from children under the age of 13. The App is not directed at children, and its content is general audience. If you are a parent or guardian and believe your child has used the App in a way that compromises privacy, please contact us.

7. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the “Effective date” at the top of this page. We encourage you to review this policy periodically to stay informed about how we protect your privacy.

Continued use of CHM Reader after any changes constitutes your acceptance of the updated policy.

8. Contact Us

If you have any questions, concerns, or suggestions regarding this Privacy Policy, you can reach us at:

Email: guoxuetansuo@163.com

We aim to respond to all inquiries within 5 business days.

By using CHM Reader, you trust us with your privacy — and we take that trust seriously. This App is built with a privacy-first philosophy, ensuring that your CHM files remain yours alone.