Privacy
Last updated 7 November 2026. Questions or requests: gregory.bford.brown@icloud.com.
Your account at gregoryberesfordbrown.com signs you in to Greg Brown's apps, such as Swing Finder and Pattern Studio, and holds the one credit balance they share. These are personal projects. This page explains what the account keeps, why, and the control you have. Each app keeps what you make or enter there, and its own page says what.
What we keep
Your email address (to sign you in, recover your account and send receipts) and whether you have confirmed it. Your passkeys' public keys: the private keys never leave your devices. Your credits: your balance, what you bought, and what you spent in which app.
Who sees it
Only you and the operator, who can see stored data to run and support the service. We do not sell your data or share it with third parties. Payments are made through Stripe, which receives your email address and payment details under its own privacy policy. Emails are sent through Resend.
How long we keep it
Until you delete your account, which erases it from every app. Two things outlast the account: a record of each payment (its amount, date and Stripe reference), for the books; and a one-way fingerprint of your email address once you confirm it, so the free starting credits are given once per address.
Your rights
You can access, correct, export or delete your data. Delete your account on the Account page, or write to the address above.
Security
You sign in with passkeys, and every page is served over an encrypted connection.
Changes
If this policy or the terms change materially, we ask you to review and accept the update before you carry on.