LoadCairn / Legal

Privacy Policy

Effective date: September 26, 2026

This policy describes information LoadCairn handles when you visit public pages, use critical-facility calculators, create an account, save a Pro project, join a team workspace, or use a subscription.

Information we handle

  • Account and sign-in information. An account includes your name, email address, email-verification status, and authentication records used for sign-in. Session records have an expiry and may include your IP address and browser user agent.
  • Calculator use and saved projects. Calculator inputs and estimates stay in your browser while you use a calculator. When you choose to save a project as a signed-in Pro member, LoadCairn stores its title, calculator type, input snapshot, estimate snapshot, and report snapshot, along with its account association and creation and update times.
  • UPS runtime campaign events. The UPS runtime calculator can record an event type (a tagged visit or completed calculation), its timestamp, and available campaign fields: source, medium, campaign, term, content, and ID. Values are trimmed and limited; values that look like an email address, phone number, or IP address are omitted. These event records do not include calculator inputs or results.
  • Page-view analytics. If deployment analytics are configured, a random visitor identifier is kept in your browser's local storage. A page-view beacon sends that identifier and the deployment identifier to Polsia's analytics endpoint.
  • Team workspaces and invitations. The app stores workspace names and membership role and status. An invitation record includes the invited email address, expiry time, and whether it was accepted.
  • Email and subscription records. Account verification and workspace invitations use your email address. If you start Pro checkout, the app sends your account email, account and product references, and selected plan to the hosted payment flow. The app stores a subscription status and plan snapshot for access checks. Payment card details are entered in hosted checkout and are not stored in LoadCairn's application database.
  • Messages you send us. If you email the privacy contact below, we receive the sender address and the message content you choose to include. The site does not provide an in-app contact-message form.

How we use information

Account and session records support sign-in. Saved project snapshots let you reopen and export your work. Workspace and invitation records manage team access. UPS campaign events help count tagged visits and completed calculations. Subscription status and plan records determine access to Pro features. Email addresses are used to verify accounts and deliver workspace invitations.

Services used with these features

Account-verification and workspace-invitation messages are sent through Polsia's email service. When deployment analytics are enabled, page-view beacons go to Polsia's analytics endpoint. Pro checkout uses a hosted payment flow for plan selection and card entry. The app sends each service the information needed for that feature, as described above.

Service providers

We use these providers to run LoadCairn: Polsia (hosting and page-view analytics), Stripe (payment processing; we never see or store full card numbers), and HeyCatch (site error and usage monitoring). Each processes only the data needed to provide its service.

Retention and privacy questions

This policy does not state a fixed retention period, deletion timeline, or request-response deadline. For questions or requests about information associated with your account, email the contact below. This policy does not promise a particular outcome.

Contact

For privacy questions, contact LoadCairn at contact@loadcairn.com.