Privacy Policy

Last updated: October 2026

The short version

Phademy's calculators run in your browser. The numbers you type into a calculator are not sent to us and are not stored on our servers. You do not need an account.

What stays on your device

To remember your choices, Phademy saves small pieces of information in your own browser: your light or dark mode, your chosen currency, and your favourite and recently used tools. This stays on your device. You can remove it at any time by clearing your browser's site data.

Analytics

We use Google Analytics to understand how Phademy is used, so we can improve it and decide which tools to build next. We also record whether Phademy is used in a browser or as an installed app. It collects information such as the pages you visit, which calculators are opened, when the share or copy buttons are used, your approximate location (country or city), your device and browser type, and how you found the site. It does not receive the numbers you enter into calculators. Google Analytics may use cookies or similar technologies. You can read how Google uses data at policies.google.com/technologies/partner-sites. You can opt out with Google's browser add-on at tools.google.com/dlpage/gaoptout, or by blocking cookies in your browser settings.

Your choices (cookie banner)

When you first visit, a banner asks you to accept or decline analytics cookies. This follows privacy rules in places such as the UK, the European Economic Area and Switzerland. If you decline, Google Analytics will not store cookies on your device, although Google may still receive limited visit information that does not identify you. You can change your choice at any time with the "Cookie settings" link at the bottom of every page.

Advertising

Phademy may show ads in the future. If we do, advertising partners such as Google AdSense may use cookies to show and measure ads. We will update this page, and offer choices about personalised ads where the law requires it, before ads appear.

Reporting a mistake

The "Report a mistake" button opens an email to us that includes the tool name, the page, the values shown and the result, so we can reproduce the problem. We only receive this if you choose to send the email.

Children

Phademy is a general-purpose tool and does not knowingly collect personal information from children.

Changes to this policy

If we change how Phademy handles information, we will update this page and the date above.

Contact

For privacy questions, email [email protected].