Your app works in the demo. Before real users pay for it, check what a demo never shows: who can read whose data, where your keys end up, and whether Stripe or a success page decides who has paid.

The Ship Check List is a free 12-page PDF with 62 checks in 8 sections: data access, keys and secrets, auth, payments, database and deploys, reliability, AI features and ownership.

Every check comes with a How to check line. Most take a few minutes with a test account and your Supabase, Stripe or Vercel dashboard open.

Start on page 11. It ranks the five gaps that expose customer data or money by what each can cost, with a test and a fix for each.

Made for founders whose app was built with Lovable, Bolt, Replit, v0, Base44 or Cursor. It is the list I work through before an app takes its first payment.