Get a quote

Your AI-built app works in the demo. Let’s make it work with real users.

Lovable, Bolt, Cursor, Replit, v0 or Claude Code got you most of the way. The last stretch is sign-in that loops, data that anyone can read (or nobody can), payments that charge but don’t unlock the account, and deploys that fail. Start with a $450 Launch Check; the worst problems are then fixed at a fixed price, and you keep the code.

Request to start

Launch Check $450 in 3 business days from read-only access, credited to the Rescue Sprint ($1,950, or $1,500 after the credit).

No call needed. Questions go to contact@app369.com; we reply by email, usually within one business day.

This fits when

  • Real users are about to arrive, or already have, and several things feel shaky
  • Users get bounced back to sign-in, or see someone else’s data
  • Stripe takes the money but the account doesn’t unlock
  • A new feature shows an empty screen or “permission denied” (on Supabase, new tables need explicit grants from October 30, 2026)
  • It works locally and fails after deploy
Offer 13

AI-Built App Rescue

For apps built with Lovable, Bolt, Cursor, Replit, v0 or Claude Code that work in the demo and break with real users. A Launch Check ranks the problems it finds, with evidence; a Rescue Sprint fixes the worst of them.

$450
Launch Check, 3 business days, credited to the Rescue Sprint

Step 1: Launch Check, $450

  • Sign-in and roles: redirect loops, sessions that drop, users who can make themselves admin
  • Data access: Supabase row-level security, policies and grants, or Firebase rules; secret keys shipped to the browser
  • Payments, from the code: Stripe checkouts that charge but never unlock the account, webhooks that can run twice or not at all
  • Deploy: builds that pass locally and fail live, environment variables in the wrong place
  • A written report with each issue found ranked by severity, with evidence, and a fixed quote for the Rescue Sprint

Step 2: Rescue Sprint, $1,950 ($1,500 after the credit)

  • Up to 5 critical or high findings from your Launch Check fixed in 7 business days
  • Pull requests with a test on each fixed flow
  • A written handover of what changed and what to watch

Not included

  • New features or full rewrites (a rebuild is quoted as a Web App MVP Sprint)
  • App Store approval guarantees
  • Changes to production data: fixes ship as pull requests you deploy
  • Your Supabase, Firebase, Stripe or hosting bills

Delivery

Launch Check in 3 business days from read-only access. The Rescue Sprint takes 7 business days from your yes to the quote.

You pay only the $450 Launch Check here. The Sprint is quoted in the report and starts only with your yes. If the Check finds more than 5 serious issues, the quote says so and prices the rest.

Access is read-only: a repo invite, a test login and a schema export with no user data. No production keys or passwords.

Simon builds and runs Workspace369, which uses Firebase, not Supabase. On Supabase apps, the same checks are done with Postgres row-level security, grants and policies.

Request to start

Not sure it fits? Email a question about this offer; we reply by email, usually within one business day.

How it works

  1. Step 1

    Pay and send read-only access

    Reply to the Stripe receipt with a repo invite (or a zipped project), a test login, and your database structure: the supabase/migrations folder or a schema export for Supabase, with no user data, or Viewer access for Firebase.

  2. Step 2

    Get the Launch Check

    Within 3 business days: each issue found, ranked critical, high or later, with where it is and how it was confirmed, plus a fixed price for the Rescue Sprint.

  3. Step 3

    Decide

    Take the report and fix it yourself, or say yes to the Sprint: up to 5 critical or high issues fixed in 7 business days as pull requests with tests, for $1,500 after your credit.

Questions before you pay

What changes for Supabase apps on October 30?
Supabase applies “new tables aren’t exposed to the Data API by default” to existing projects. Tables you already have keep working; a table created after that needs an explicit grant, or supabase-js gets “permission denied”. The Launch Check flags every table it affects, and the free checker linked below checks a migration in your browser.
I’m not technical. Can I still do this?
Yes. Send the app link and a screen recording of what breaks, and you’ll get back in writing exactly what access is needed. Everything happens by email.
Will you rewrite my app?
No. The goal is to keep what works and fix what doesn’t. If the Check shows a rebuild would cost less, the report says so and it’s quoted as a Web App MVP Sprint.
What can you work on?
The code AI builders produce: React, Next.js or Vite front ends on Supabase or Firebase, with Stripe. If your app is outside that, you’ll hear so before you pay.
How is this different from the App Fix Ticket?
The Fix Ticket is for one known bug. The Launch Check is for an app that is about to meet real users and needs the whole thing checked: sign-in, data access, payments and deploys.
Do I need a call before I pay?
No. The scope, price and delivery time are on this page, and everything happens in writing. If you want to talk live, calls cost $100 per 15 minutes, paid upfront.
Who owns what you deliver?
You do. The code, videos and files delivered under this offer belong to you once paid.

Fiverr reviews / 95 on app work

What buyers said about this kind of work

All 126 reviews →
  • “Very detailed and professional. Understands full scope of project before advancing and has honest but critical feedback. such a pleasure with consultation and can't wait to get started.”
    A buyer in the United States, July 2024. Custom order on Fiverr
  • “Had a great consultation with Szymon. He knows his stuff and I have a deeper understanding of how my new mobile app can work.”
    A buyer in the United States, April 2024. Custom order on Fiverr
  • “Great consultation, had many of these types of meetings and definitely understood what nis needed to be done.”
    A buyer in the United States, July 2023. Custom order on Fiverr

Read the whole story

Ready to start?

Pay online and send what the work needs by replying to the Stripe receipt. Simon, who builds and runs the SaaS Workspace369, does the work himself.

Request to start

Further reading

Other fixed-price offers

Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.