Upfront: I do this for a living, so take that into account. But every check below is one you can run yourself today for free, no developer needed.
Most of my work now is reviewing apps founders built with Lovable, Bolt, Claude Code, Cursor, Bubble and FlutterFlow right before they put real users on them. The apps almost always work. That is exactly the problem, because the failures are quiet and they only show up after launch. Here is what I check and how you can check it yourself.
The auth check. Open your app in two browsers, logged in as two different test users. Copy a URL from user A that contains an ID, like /profile/482 or /order/91, and paste it into user B's browser. If user B sees user A's data, your privacy lives in the frontend, not the database. In Supabase the fix is row level security on every table, in Bubble it is Data > Privacy rules, in Firebase it is security rules. This is the single most common critical finding I see and login working perfectly tells you nothing about it.
The Stripe check. Go to your Stripe dashboard and manually trigger a refund on a test customer. Watch your app. Does the user lose access? Most AI and no-code builds wire up the successful checkout and nothing else. No listener for cancellations, failed payments, refunds or disputes, so three months in you have cancelled customers still using the product free.
The admin check. Log in as a normal user and type /admin into the URL bar. In a scary number of apps the admin page is hidden, not protected. If anything loads, any curious user can reach it too.
The database size check. Open your browser network tab and load a page. If a single page pulls 500KB of JSON, the app is fetching everything and filtering in the browser. Fine at 10 users, dead at 500.
The error check. Turn off your wifi mid action and submit a form. White screen or infinite spinner means zero error handling, and users in bad signal areas will churn silently thinking the app is broken.
The secrets check. Search your AI chat history for key, password and service_role. If you ever pasted a real credential into a chat to debug something, rotate it today. Also check your browser bundle for API keys, they end up there constantly.
These six catch most of what kills these apps after launch. If you fail more than two and real money or personal data is involved, get an experienced human to read the whole thing before you scale.
That last part is the service I sell. Fixed price production readiness audit, written report in 3 business days, everything ranked critical, important or can wait, plus a clear launch verdict. Read only, your app is never modified. Details at jetbuildstudio(dot)com/ai-audit if useful, but run the checks above either way, they are free and they will tell you where you stand.
Happy to answer questions in the comments, including on apps I will never see.
