Privacy Policy

Last updated: 2026-07-28

What we collect

DateSum does not require accounts and does not collect personal information. Dates you enter into calculators are processed entirely in your browser and are never transmitted to our servers.

Advertising and cookies

This site displays advertising served by Google AdSense. Google and its partners may use cookies (including the DoubleClick cookie) to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising at Google Ads Settings. Third-party vendors' use of advertising cookies is described in Google's advertising policies.

Analytics

We may use privacy-respecting, aggregate analytics to understand which pages are useful. No analytics data is sold or shared beyond the processors involved in providing the service.

Hosting logs

Our hosting provider may keep standard server logs (IP address, user agent, requested URL) for security and operational purposes, retained for a limited period.

Your choices

You can use browser settings or extensions to block cookies and ads; all calculators work fully without them. For questions about this policy, contact us.