Privacy Policy

Last updated: November 11, 2026

1. 100% Browser-Local Calculations

LumenGrid Studio (lightinglayoutcalculator.com) performs all room geometry, photometric illuminance heatmaps, and SVG blueprint exports directly inside your web browser. Your room measurements and exported layout plans are never uploaded to our servers.

2. Analytics & Cookies

We may use privacy-conscious, aggregated web analytics (such as Google Analytics 4) to understand overall page performance, device screen sizes, and popular calculator presets so we can improve usability. We do not sell personal information to third parties.

3. Contact

For questions regarding this Privacy Policy, contact us at support@lightinglayoutcalculator.com.