Your app is built and mostly works. But every new prompt breaks something else, errors show up you can't explain, or you're worried it isn't safe to put real users on it.

I'm a full stack developer, and I find the real cause instead of patching the symptom.

Errors and crashes, and features that stopped working

Login and user roles that are broken or not secure

Supabase or Firebase rules that let users see each other's data

API keys and secrets exposed in the frontend

Stripe payments and webhooks that don't fire

Slow pages and failing API calls

I read through your code and setup without changing anything, and send you a short report sorted by what to fix first. You see the full picture before you spend money on fixes. That's what the starting price covers.

Audit report, from $120 (about 3 days): a read-only review of your code and setup, with a report sorted by what to fix first.

Fix up to 5 issues, around $350 (about 5 days): up to 5 bugs or errors you already know about, with the cause explained. More fixes are about $60 each.

Fix and secure, around $900 (about 2 weeks): the audit, plus fixes for security, login, data rules, payments and errors, then a deploy.

These are starting points. You get a fixed quote after we talk.

You message me with what's wrong and the tool you built it with.

You invite me to your repo and, if you use them, to Supabase or Firebase.

I find the cause and fix it on a separate branch, so your live app isn't touched while I work.

You test the branch. When you're happy, we merge it, and you get notes on what was wrong and what changed.

I write the fixes myself, and you talk to me from the first message to the last. I explain everything in plain English.