Privacy Policy

Calculator inputs

Everything you type into a calculator (height, weight, property price, interest rate, …) is processed entirely in your browser. Nothing is sent to our servers. We simply have no idea what you entered.

Visitor analytics

This site uses Firebase Analytics (Google Analytics for Firebase) to collect anonymised visitor stats: pageviews, browser type and coarse geographic location (country / city level). We use this to understand which calculators are popular and to improve the site.

We do not collect any personally identifiable information. Your calculator inputs (height, weight, property price, interest rates, etc.) remain 100% client-side and are never sent to us or to any third party.

If you would rather not be tracked, install a content blocker (e.g. uBlock Origin), enable browser Do Not Track, or disable cookies in your browser settings.

Cookies

The site sets no business cookies of its own.

Your dark mode preference and search input are stored in browser localStorage only — never uploaded.

Firebase Analytics sets small anonymous cookies (`_ga`, `_ga_*`) with a TTL of about two years; you can clear these any time from browser settings.

External links

Pages may reference third-party sources (tax authorities, government data sites, etc.). Once you click out, that site's privacy policy applies.

Changes

When the policy is updated, the date on this page changes. Material changes will be highlighted on the site.