By Most Lovable apps that fail in production fail on the Supabase side: tables without access rules, keys in the wrong place, and no backups. The React front end is usually the easier part to fix.
What Lovable builds
Lovable generates a React and TypeScript front end with Vite, Tailwind CSS and shadcn/ui. Data, sign-in, file storage and server functions usually run on Supabase, and the code can sync to a GitHub repository.
Where Lovable apps usually break
Access rules are on for every table
In Supabase, open Table Editor: every table should show RLS enabled, with at least one policy. In Firebase, your rules should never say allow read, write: if true.
No secret keys reach the browser
Open your live app, then DevTools, Sources, and search the loaded JavaScript for sb_secret_, sk_live_, sk-proj- and sk-ant-. Older Supabase keys are long tokens starting with eyJ: decode the middle part of each on your own machine, and if it contains "role":"service_role", your secret key is public. A publishable or anon key in the browser is expected.
One user cannot open another user's records
Sign in as user A, copy a request from the Network tab, and change the record ID to one that belongs to user B. You should get an error or an empty result.
Paid accounts are unlocked by a verified payment webhook
Access should change only when your server receives a signed webhook from Stripe or your provider, not when the browser reaches a success page.
Database backups run automatically and a restore has been tested
Check what your database plan actually includes, then restore a backup into a test project once.
The code lives in a Git repository you own
Connect GitHub or export the project. If the builder account is lost, the product should not be.
Check it yourself
- Connect the project to GitHub so you own a copy of the code.
- Open the Supabase dashboard for the project and confirm RLS is enabled on every table, with policies that compare the row owner to
auth.uid(). - Search the live app's JavaScript for
sb_secret_and for long tokens starting witheyJ. Decode the middle part of each token: none may contain theservice_rolerole. - Test with two accounts: user A must not see user B's data through the UI or the API.
- If you take payments, confirm a Supabase Edge Function or another server receives the Stripe webhook and verifies its signature.
A policy that keeps each user's rows private
alter table public.profiles enable row level security;
create policy "Users can read their own profile"
on public.profiles for select
to authenticated
using ((select auth.uid()) = user_id);Replace profiles and user_id with your table and the column that holds the owner's id, then add matching policies for insert, update and delete.
When to call an engineer
Call an engineer when RLS is off on tables that hold personal data, when payments unlock access without a webhook, or when every new prompt breaks an older feature.
A one-off check costs $49 to $800. Fixing and hardening an app costs $1,500 to $15,000 and takes 1 to 8 weeks, based on the prices companies publish.
Top-rated companies for Lovable apps
Ranked by our score: published prices, scope of work, AI tools named, timing and a low-risk first step. How we score.
- 1Afterbuild Labs10.0/10Best for: A check before launchFree first step · from $49
- 2Redlab10.0/10Best for: A full rescue by one team that keeps buildingFree first step · from $490
- 3Vibe Code Rescue (Lev Arakelyan)9.0/10Best for: A one-off check and a cleanupFrom $299
Questions
Is my Lovable app safe to launch?
Not until Row Level Security is on for every Supabase table and you have tested it with two accounts. That one setting decides whether strangers can read your users' data.
Can I keep building in Lovable after a rescue?
Usually yes. Fixes made in the GitHub repository sync back, as long as the structure stays compatible with how Lovable edits the project.