Privacy Policy

Calcora does not require an account and does not collect personal information you enter into calculators — all math runs locally in your browser or on your device and is never sent to us.

If you choose to sign in (with Google or Apple) to sync saved calculators, we store your email address, display name, and your saved calculations on our servers. You can permanently delete your account and all of this data at any time — in the mobile app (About tab → Delete account), on the web account page, or by emailing support; see account deletion. The mobile apps also send anonymous crash reports (via Sentry) so we can fix bugs; crash data is not linked to your identity.

We use privacy-respecting, cookieless analytics to count visits, and may display ads from third-party networks that use cookies to serve relevant ads. We honor your browser's Global Privacy Control (GPC) and Do-Not-Track signals: when either is set, we instruct our ad provider to serve only non-personalized (contextual) ads. You can also control ad personalization in your account settings with those providers.

The Calcora mobile apps show banner ads served by Google AdMob. Ads in the apps are requested as non-personalized; where required (for example in the EU and UK), the app asks for your consent before showing ads, and you can change that choice any time from the app. AdMob may process device identifiers and coarse ad data to serve and measure ads — see Google's advertising policy.

Some DIY pages may include partner links to retailers or marketplaces. Calculator inputs still stay in your browser, but clicking a partner link opens a third-party site where that site's terms and privacy policy apply.

When ad code is enabled, Calcora shows a notice about third-party ads. You can also use browser privacy controls, including GPC and DNT, to request non-personalized ads.

Questions about privacy? Reach the Calcora Team via the contact page.