Privacy Policy

Privacy Policy

Last updated: [20-03-2026]

This Privacy Policy describes how HVAC Master Toolkit – Duct Calculator ("we", "our", or "us") handles user information.

1. Information We Collect

We do NOT collect any personal data from users.

- No account creation is required

- No personal information (name, phone number, location) is collected

- All calculations are performed offline on your device

2. Contact Information

If you choose to contact us through the app (Contact Form), you may voluntarily provide:

- Your Name

- Your Email Address

- Your Message

This information is used only to respond to your queries and is not stored or shared with any third party.

3. Internet Usage

This app does NOT require an active internet connection for its core functionality.

4. Data Sharing

We do NOT sell, trade, or share any user data with third parties.

5. Data Security

Since no personal data is collected or stored, your privacy is fully safety.

6. Children's Privacy

This app is safe for all users and does not knowingly collect any data from children under the age of 13.

7. Changes to This Policy

We may update this Privacy Policy in the future. Any changes will be updated on this page.

8. Contact Us

If you have any questions, you can contact us at:

📧 rehaanshaikh58542@gmail.com

Developer:

Rehan Shaikh