Privacy, in short: the calculator keeps your numbers.

The calculator runs entirely in your browser. Your bill, usage and tariff inputs are not sent to a server, stored or sold.

Stays on your device

Every calculator input and result. Close the tab and it is gone.

Sent only if you write

A contact message carries your name, email and message to the operator through FormSubmit so a reply is possible. Nothing else is attached.

Never happens

No advertising trackers set by this site. No installer receives your details. No account exists, so there is no account data to leak.

The plain list

Basic server logs from the hosting provider, such as IP address and pages requested, used for security and traffic counts.
To ask what is held about you from a contact message, write to [email protected].