Privacy Policy

Last updated: May 15, 2026

1. Local processing

800339 calculators run locally in your browser. Calculator input is not uploaded to the 800339 server.

2. Analytics

We may use Matomo analytics to understand page views, traffic sources, device types and other basic usage information. We do not intentionally send calculator input to analytics.

3. Ads and external links

This website may include sponsored links or external ads. When you click an external link, you visit a third-party website. Their privacy practices are controlled by them.

4. Third-party ad images

Ad images may be loaded from third-party image hosts or advertising services. Those servers may receive browser request information such as IP address, User-Agent, Referer and request time.

5. Contact

For privacy questions, contact: [email protected]