Privacy Policy

1. Introduction

CalcHQ ("we," "us," or "our") operates the website located at calchq.io (the "Site"). This Privacy Policy explains how we collect, use, and share information about you when you use our Site. By using CalcHQ, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect

CalcHQ is designed to be used without creating an account. We do not require you to provide any personal information to use any calculator on this Site. However, the following types of data may be collected automatically:

• Usage data: Pages visited, time spent on pages, referring URLs, and browser/device type, collected via analytics tools.
• Cookies: Small data files placed on your device by advertising networks and analytics services (see Section 4).
• IP address: Collected automatically by our server and third-party services for security and analytics purposes.

3. How We Use Information

We use the information we collect to:

• Operate, maintain, and improve the Site
• Understand how visitors use the Site (analytics)
• Serve relevant advertisements through third-party ad networks
• Comply with legal obligations

All calculator computations are performed entirely in your browser. We do not transmit the values you enter into any calculator to our servers.

4. Cookies and Advertising

CalcHQ uses Google AdSense to display advertisements. Google AdSense uses cookies to serve ads based on your prior visits to this Site and other sites on the internet. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our Site and/or other sites on the internet.

You may opt out of personalised advertising by visiting Google Ads Settings or by visiting aboutads.info.

We also use analytics cookies (Google Analytics / Umami) to understand Site traffic. These cookies collect anonymised information about how visitors use the Site.

5. Third-Party Services

We use the following third-party services that may collect data independently:

• Google AdSense — advertising network. Google Privacy Policy
• Google Analytics — website analytics. Google Privacy Policy
• Open-Meteo — free weather API used to display local weather on ZIP code calculator pages. No personal data is shared with Open-Meteo; only geographic coordinates are transmitted. Open-Meteo Terms

6. Data Retention

We retain analytics data in aggregated, anonymised form for up to 26 months. We do not retain any personally identifiable information beyond what is required by our third-party service providers under their own privacy policies.

7. Children's Privacy

CalcHQ is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us and we will delete it.

8. Your Rights

Depending on your location, you may have rights under applicable privacy laws (including GDPR and CCPA) to access, correct, or delete personal data we hold about you. Because CalcHQ does not collect personally identifiable information directly, most requests can be addressed by adjusting your browser's cookie settings or opting out of Google's advertising as described in Section 4.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Continued use of the Site after any changes constitutes your acceptance of the new policy.

10. Contact

If you have any questions about this Privacy Policy, please contact us at: [email protected]