Privacy policy

What we collect

• Payment details are collected and processed by Stripe. We never see your card number. Stripe shares your email and order details with us so we can deliver the product and handle refunds.
• An access cookie is set on your device after purchase so the kit opens without an account. It contains a signed reference to your order — no personal data — and expires after one year.
• Contact form messages, including your email, are sent to us by email so we can reply.
• Calculator inputs stay in your browser. They are never sent to our servers.

What we do not do

• No advertising or cross-site tracking cookies.
• No sale or rental of your information.
• No marketing email unless you separately ask for it.

Third parties

Stripe (payments), our hosting provider (Vercel), and our transactional email provider (Resend) process data on our behalf under their own privacy terms.

Your choices

Clearing your browser cookies removes the access cookie; you can restore access with your checkout email. To have your contact-form messages deleted, ask through the contact form.