Privacy

What we collect

Calculator use. When you use a tool, inputs and results are processed in your browser. We do not require a login, and we do not store your calculator inputs on our servers for normal browsing.

Favorites & recent tools.If you use stars or recent history, that information is saved only in your browser's localStorage. It is not sent to us unless you use a feature that explicitly transmits data in the future.

Theme preference. Light/dark mode may be stored locally the same way.

Analytics. We may use privacy-friendly analytics (e.g. page views and performance) to improve the site. Those providers process aggregated data under their own policies.

Advertising. We may show ads through Google AdSense or similar networks. Those services may use cookies or similar technologies to measure performance and personalize content. You can manage ad personalization in your Google account or via industry opt-out tools. Our ads.txt file lists authorized sellers when AdSense is enabled.

Third parties

Fonts or scripts may be loaded from our hosting provider or CDNs as part of running the app. Embedded content (if we add any later) would be called out separately.

Data retention and control

• Most calculator interactions are not stored server-side.
• Browser-only data can be cleared by deleting local site storage in your browser settings.
• If you submit email via forms, you can request deletion through the contact page.
• Operational logs are retained only as needed for security, debugging, and service reliability.

Contact

For privacy questions, use our contact form or email support@numbarn.com.