Privacy

Privacy policy

Your numbers never leave your device. Every calculator on Maineblock runs entirely in your browser. We do not collect, transmit, or store anything you type into a tool.

What we don't collect

No accounts, no tracking pixels, no analytics beacons on tool pages. There is nothing to breach because there is nothing stored.

Email list

If you join the email list, we store your address with the email provider (Substack or ConvertKit — to be confirmed) for the sole purpose of sending you the cheat sheet and new-tool announcements. Unsubscribe anytime; your address is never sold or shared.

Cookies

Maineblock sets no cookies of its own. The email provider's embed may set its own — see their policy when the embed goes live.

Contact

Questions: use the contact details on the about page.

Last updated: October 2026.