Privacy

Calculator inputs

Calculations run in your browser. We do not ask for bank logins, payment details or an account to use the calculators. Calculator amounts are not deliberately included in analytics events. Avoid putting personal or financial information in a URL or contacting us with account numbers.

Display preference

We store your chosen light or dark theme in this browser’s local storage. On your first visit, the display follows your device’s appearance setting. This preference does not contain calculator inputs or identify you.

Website analytics

We use Vercel Web Analytics to understand aggregate usage, including visited pages, referring websites, approximate location and device or browser information. Our integration removes the query string and fragment from the page URL before sending a page view. We do not send custom events containing calculator entries.

Vercel describes this service as using aggregated statistics without third-party tracking cookies. See Vercel’s analytics privacy information for its collection and processing details. Available history depends on our hosting plan; analytics reports are not a record of your financial circumstances.

Hosting and external links

Our hosting and security providers may process technical request data, such as IP addresses, to deliver and protect the website. Optional partner links may route by approximate country and include referral identifiers. Clicking an external link takes you to a service governed by its own privacy policy.

Messages and changes

If you choose to contact the maintainer through an external service, that service’s terms and privacy practices apply. Please send only what is needed to describe the issue. We will update this notice if the website’s features or data handling change. For privacy questions, see our contact options.