Privacy Policy

Last updated: January 2026

1. Introduction

Welcome to calqin.com ("we", "our", "us"). This Privacy Policy explains how we handle your information when you use our website. We are committed to protecting your privacy.

2. Information We Do NOT Collect

Our calculators run entirely in your browser. We do NOT collect, store, or transmit any numbers, dates, or personal data you enter into our calculators. All calculations happen locally on your device.

3. Automatically Collected Information

Like most websites, we may collect basic technical information via cookies and analytics, including: browser type, device type, pages visited, time spent, and IP address (anonymized). This helps us improve our service.

4. Cookies

We use cookies for analytics (Google Analytics) and advertising (Google AdSense). You can disable cookies in your browser settings.

5. Third-Party Services

We use Google Analytics and Google AdSense. These services may collect information as described in their own privacy policies. Google's use of advertising cookies enables it to serve ads based on your prior visits to our site or other sites.

6. Advertising

We display ads via Google AdSense. Google uses the DART cookie to serve ads based on your visits. You can opt out of personalized ads at google.com/settings/ads.

7. Children's Privacy

Our service is not directed to children under 13. We do not knowingly collect data from children.

8. Changes to This Policy

We may update this Privacy Policy periodically. Changes will be posted on this page with an updated date.

9. Contact

For questions about this Privacy Policy, email us at: contact@calqin.com