Privacy

Privacy

Last updated October 9, 2026.

SignalPlan is a browser workspace for AV and low-voltage system design. This page describes the data the product uses to run accounts, drawings, and billing.

Account

Sign-in is handled by Clerk. We store the identity needed to open a session, including email as a cache, and we mint a SignalPlan session cookie for the workspace.

Drawings and catalogs

Project drawings, device catalogs, and related files belong to the organization you work in. That data is stored so the workspace can load, save, and (when enabled) collaborate on a page. We do not sell drawing contents.

Billing

Subscriptions are billed through Stripe on the organization. Stripe processes payment details. SignalPlan stores the subscription and seat entitlement needed to enforce the plan.

Marketing and demo

If you leave an email to try the public sandbox, or send a question through the contact form, we store that address, the message if you wrote one, and the reason you wrote (demo or contact). Production delivery uses Resend. If you leave an email for the sandbox, we send the demo link you asked for. We send other emails about SignalPlan (a short series, and a first-month offer) only if you tick "Send me a few emails" on the form. Each of those emails has an unsubscribe link that works with one click, and the series stops when you reply, sign up or unsubscribe. A person reviews every email before it is sent. You can ask us to delete a marketing address by writing [email protected].

Contact

Questions about this policy can be sent from the contact form or [email protected]. We will keep this page current as the product adds quoting or analytics.