Support
How to reach a human.The Plumbline is a small, open project, not a company with a call center. There is one way to reach us, and a person reads it. Real questions get a real answer, usually within a few days.
CONTACTEmail jay@mindtonic.org. This is the support address for everything below, run by Mindtonic, Inc., the project behind The Plumbline. There is no phone line; email is the way in, and it is read by a human, not a bot.
DONATIONS AND BILLINGDonations are voluntary and processed through Equipoise (its payment processor is Stripe). The board is free for everyone, so a donation buys no goods, no access, and no membership, and it is non-refundable. That said, if a charge was a genuine mistake (a duplicate, an accidental amount, or a card you did not mean to use), email us and we will make it right in good faith. You can also manage or stop a recurring gift, or ask about a specific charge, by contacting Equipoise and Stripe directly, since they hold the payment details and we do not.
NEWSLETTERIf you subscribed to updates, every email carries an unsubscribe link that takes effect immediately. If you would rather we handle it, email us and we will remove you.
REPORTING A DATA ERROR OR A QUESTIONThe instrument values corrections. If a number looks wrong, a source has changed, or a method seems off, tell us; every reading is traceable to its source and reproducible from the public repository, and corrections arrive as dated, signed field notes, never as silent edits. How each tile is built and scored is laid out on the methodology page.
PRIVACY AND TERMSWhat we collect (nothing) is set out in full on the privacy page, and the plain terms for using the site and donating are on the terms page.
Mindtonic, Inc. Last updated: 13 June 2026.