Legal
Privacy Policy
Last updated: October 2026. Plain-English privacy for a simple tools site.
1. What we collect
Almost nothing. Our calculators run entirely in your browser — the numbers you type never leave your device and are never sent to our servers. We do not ask you to sign up, and we do not keep accounts or profiles.
2. Cookies & advertising
We use Google AdSense to show ads that keep HisabCenter free. Google and its partners use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of third-party vendors' use of cookies for personalized advertising by visiting aboutads.info.
3. Analytics
We use Google Analytics to understand which calculators are popular so we can improve them. Google Analytics collects anonymous usage data (pages visited, time spent, device type). You can opt out via your browser settings or Google's opt-out tools. This data is aggregated and never tied to your identity.
4. Currency rates
Live currency rates are fetched from a public third-party API (open.er-api.com). Your browser contacts that service directly; we do not log these requests.
5. Contact
Questions about this policy? Reach us via the contact page.