Privacy

What stays on your device

Each calculator remembers your last inputs in your browser’s local storage, so they are there when you come back. My numbers, your country, your theme and the journey steps you have opened are stored the same way. None of it is sent to us. Clear it with Clear them on My numbers, or by clearing this site’s data in your browser.

When you share a result, the inputs go in the link you copy. Anyone with that link can see them.

What we collect

Our host, Cloudflare, keeps standard server logs (IP address, page, browser) for security and to keep the site running. We may use privacy-friendly page counts that don’t use cookies or identify you. If you email us, we keep the email to reply and to log corrections.

Ads and partners

Where we show Google ads, Google may use cookies to show and measure ads, and in the UK and EU only after you agree. Read cookies for the detail. When you follow a sponsor link, the partner’s own privacy policy applies on their site; we only pass a reference that tells them the visit came from us.

Your rights

Wherever you live, you can ask what we hold about you, and ask us to correct or delete it. Because calculator inputs never reach us, in most cases the answer is nothing beyond an email you sent.

Contact

Email hello@goodcalcs.com. goodcalcs is run by Aotob.