Your profile comes from the Google account you signed in with. Billing is not wired up yet — see the note below.
Free covers the screener with end-of-day data. Pro is planned to add saved screens, alerts and intraday refresh. No payment is wired up: the schema holds the billing tables and enforces idempotency on payment events, but there is no checkout.
Every price, volume and rating in this build is generated. Do not trade on anything you see here.