Cookie Policy
How CalClu uses cookies and similar browser storage.
Last updated November 8, 2026
What we store and why
Essential: your cookie choice, your theme (light or dark), and — if you sign in — your login session. These keep the site working and can't be switched off.
Usage statistics: a random visitor key and visit id so we can count which calculators are used and how long visits last. No name, email or address is attached to them.
Advertising: when ads are enabled, our advertising partner (Google AdSense) may set cookies to show and measure ads. These are only used if you accept.
Changing your choice
You can change your decision at any time: . You can also clear cookies in your browser settings.
More information
See our Privacy Policy for how we handle personal information, or contact us with questions.