Contact ToolFactory

Found a wrong result, unclear assumption, accessibility problem, stale source, or broken control? Email contact@provencalc.com. Include the page address, inputs you used, expected result, and device or browser when relevant. We prioritize reproducible corrections over general marketing requests.

Useful reports

• A formula error with exact input and expected output.
• A keyboard, screen-reader, contrast, or mobile-layout problem.
• An authoritative source that changes a stated assumption.
• A broken internal link or page that fails to load.

Do not send account passwords, financial records, medical records, identity documents, or affiliate credentials. ToolFactory calculators run locally and we cannot recover inputs because the site does not receive them. Please read our privacy policy before sharing personal information.

Response expectations

This is a small pen-name project, not an emergency, medical, brokerage, telecom, or legal support service. We review actionable site corrections as capacity allows. For advice about a trade, diet, health condition, deadline, device contract, or roaming charge, contact an appropriately qualified professional or the responsible provider.