Cookie policy

The short version

calcso doesn't use tracking cookies. We don't sell your data. Our analytics is cookie-less. The only things we store in your browser are a few preferences (theme, language, currency) so the site remembers how you like it.

What are cookies?

Cookies are small pieces of data a website asks your browser to store. They're commonly used to keep you logged in, remember your preferences, or track you across sites for advertising. We use them only for the second case — and even then, sparingly.

What we store

Preferences (localStorage). We use your browser's local storage — not cookies — for your selected theme (light/dark), language and preferred currency. These keys are: calcso.currency, the next-themes theme key, and the locale segment in the URL itself.

No analytics cookies. We use Umami, which identifies a visitor session via a hash of IP + user-agent + a daily salt — no cookie is set, no cross-site tracking is possible, and the hash resets every day.

No advertising cookies. We don't run ads.

How to opt out

Because we use no tracking cookies, there is nothing to "opt out of" in the cookie sense. If you want to remove the preferences we have stored, clear localStorage for calcso.com in your browser settings — your theme, language and currency will reset to defaults on your next visit.

We serve our analytics through our own domain (a first-party proxy of Umami), so common ad-blockers and tracker lists do not apply. If you would still like to opt out of analytics, you can: enable tracking protection in Firefox or Brave; install a privacy-focused extension that supports custom rules; or block cloud.umami.is (and the calcso.com/_um/ path) at the DNS or hosts-file level. We never use the data to identify individual visitors regardless.

Questions

For anything not covered here, see our Privacy Policy or get in touch via the contact form.