Privacy Policy

Last updated: April 2026

Introduction

Glazing Calculator ("we", "our", or "us") operates the website at glasscalculator.org and the Glazing Calculator Android application. This Privacy Policy explains how we collect, use, and protect information when you use our services. We are committed to protecting your privacy and being transparent about our data practices.

Information We Collect

We do not require you to create an account or provide any personal information to use the Glazing Calculator. The calculator runs entirely in your browser or on your device.

Analytics data: We use Google Analytics to collect anonymous usage data such as page views, session duration, approximate geographic location (country/city level), device type, and browser type. This data helps us understand how people use the calculator so we can improve it. No personally identifiable information is collected through analytics.

Advertising data: We use Google AdSense to display advertisements. Google may use cookies and similar technologies to serve ads based on your prior visits to this or other websites. You can opt out of personalised advertising by visiting Google Ads Settings.

How We Use Information

Any data collected is used solely to improve the Glazing Calculator experience, understand usage patterns, and support the site through advertising. We do not sell, rent, or share any personal data with third parties beyond the analytics and advertising services described above.

Cookies

Our website uses cookies for analytics (Google Analytics) and advertising (Google AdSense). These cookies are set by Google and are used to track website usage and serve relevant advertisements. You can control cookies through your browser settings. Disabling cookies may affect the display of advertisements but will not affect the functionality of the calculator.

Data Storage

All calculations you perform are processed locally in your browser or on your device. We do not store any of your glass dimensions, customer names, job references, pricing, or calculation results on our servers. Your data stays on your device.

Third-Party Services

We use the following third-party services, each with their own privacy policies:

Children's Privacy

Our services are not directed at children under 13. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.

Contact

If you have questions about this Privacy Policy, you can reach us through the Google Play Store listing for the Glazing Calculator app.