Cairn Privacy Policy
Updated September 29, 2026
Information and use
Calculator inputs are processed in your browser. Stripe processes your purchase and provides checkout and payment-status information so we can deliver the roadmap. Your payment receipt and access link may identify your purchase; keep them private.
Hosting and browser storage
Vercel hosts this site and provides page-view analytics. Operational requests may include IP address, browser and device information. We use browser storage or cookies where needed for the service. We do not use advertising cookies or sell personal information. We do not change these practices in response to a browser Do Not Track signal.
Service providers
Vercel hosts the service and Stripe processes purchases. We do not receive your full card number. Providers process information under their applicable terms. We may also disclose information when required by law or to protect the service.
Retention and your choices
We keep information needed to deliver the service, handle support, prevent fraud and meet legal obligations. You can request deletion. Billing, dispute and legally required records may need to be retained; we will explain any applicable exception. Copies held by payment providers are subject to their own obligations.
Children
This purchase service is intended for adults. Do not submit information about children through support or purchase forms.
Contact and changes
For privacy, access, correction or deletion requests, email samuel.taylor19@gmail.com. Please identify the product and your purchase or account email; do not send passwords or full payment-card details. We may need to verify your identity before acting. Material changes will be explained on this page with an updated date.