Privacy
Your calculations run locally. Sharing and optional measurement should remain deliberate.
Financial inputs
The calculator application processes the entered amounts and cash flows in your browser. It does not send those inputs to a calculation server. A downloaded summary is created on your device.
Shared calculations and saved tools
Sharing encodes the chosen inputs in the link’s fragment. Anyone you give that link to can read the values. Saved calculator identifiers use local storage in this browser; they are not account-based bookmarks. Clearing browser storage removes them.
Optional usage measurement
Usage analytics are off unless a site operator configures a collection endpoint and you opt in. Permitted events contain a tool identifier, an allowlisted page path and an action name. The measurement module excludes amounts, cash flows, free text, query strings, fragments, referrer URLs and persistent visitor identifiers. An opted-in browser can keep a last-measured calendar date locally to count a return on a later day, without sending that date or an identifier. If enabled, the receiving hosting service can still receive normal network metadata such as an IP address.
Hosting and external links
Your hosting provider can receive ordinary web-request metadata. External source links are opened without sending this page as a referrer. A contact email opens your own mail application; a prepared report is not sent automatically.
Clear local preferences
You can remove saved calculators and the analytics choice from this browser.