Published 2026-07-20 · Vibe Code Engineers
What it costs to fix a vibe-coded app
Fixing an AI-built app costs anywhere from about $20 to $50,000, and the spread is not mostly a quality difference. It is that the same sentence describes at least six genuinely different pieces of work. This guide sorts them, so you can work out which one you actually need before anyone quotes you.
Six tiers, and what each one actually buys
| Tier | Typical range | What you get | Right when | Watch for |
|---|---|---|---|---|
| Marketplace gig | $20 – $300 | One person, one specific bug, usually fixed-price and quoted before anyone has read your code. | The problem is genuinely isolated and you can describe it precisely. A broken deploy, one failing form, a dependency that won't install. | A fix that works without anyone understanding why it broke. If the cause was structural, you will be back with a different symptom next month, paying again. |
| Automated scanner | $5 – $30 / month | Software that checks your app for common misconfigurations and produces a list. | You want a cheap, fast first signal, or continuous monitoring after a human has already reviewed the app once. | Scanners check whether a security rule exists. They cannot check whether it is correct — whether the rule letting users read their own records also lets them read everyone's. Most of what goes wrong in AI-built apps is exactly that kind of logic error. |
| Fixed-price review | $200 – $2,500 | Engineers read the codebase and deliver a written report: what is unsafe, what is fragile, what production readiness would require. | You do not yet know what is wrong, or you have a quote for remediation and want an independent opinion on whether it is justified. | Whether you keep the report if you do not buy the follow-on work. If findings are only released on purchase, you are buying leverage rather than analysis. |
| Remediation sprint | $2,000 – $20,000 | A defined block of engineering time fixing an agreed list — typically security, stability, and the specific things blocking launch. | You know what needs fixing, usually because a review told you, and you want it done rather than explained. | Scope written in outcomes, not hours. 'Two weeks of engineering' is a budget. 'These eleven findings resolved and verified' is a deliverable. |
| Full rescue or rebuild | $15,000 – $50,000+ | Substantial reconstruction — the data layer, the architecture, or the whole application. | Genuinely rare. The data model cannot support what the product now does, or the app is small enough that rebuilding is measured in days. | This is the most expensive recommendation anyone in this market can make, which is exactly why it gets made. Ask for the reasoning, not the verdict, and get a second opinion. |
| Monthly engineering | Quoted per engineer | Ongoing development: the same engineers, continuous work, no re-scoping every change. | The app has customers. Products do not have a finish line, and re-quoting every change costs more in overhead than it saves. | Real timezone overlap and a named person, not a pool. Ask what hours the engineers actually work and hold the answer to it. |
What actually drives the number
Two apps that look identical from the outside can differ by an order of magnitude in what they cost to put right. These are the factors that decide it, roughly in order of impact.
How much of it is load-bearing
AI-generated projects frequently contain a large fraction of dead code from abandoned approaches. Deleting it is often the cheapest improvement available, and it shrinks everything that follows.
Whether the data model fits
Almost the entire fix-versus-rebuild question. A schema that matches what the product does is cheap to build on. One that does not makes every feature a negotiation.
Whether there are tests
Not because tests are virtuous, but because without them nobody can verify a change did what it was supposed to. Their absence makes every other piece of work slower and riskier.
Whether it is live
Real users and real data mean migrations, backwards compatibility, and no downtime. Work that is straightforward before launch gets meaningfully more expensive after it.
How much of it is money or personal data
Payments, subscriptions, and personal information carry consequences that a broken layout does not, so they justify more care and cost more to do properly.
How clearly you can say what you want
The cheapest engagements are the ones where the client knows what the product is for. Discovery is real work, and paying engineers to conduct it is the expensive way to do it.
The cheapest tier is a real option, and a real trap
There is a large market in $20 to $300 fixes, and it is not a scam. For a genuinely isolated problem it is the correct choice, and paying agency rates to fix one broken form would be a waste of money.
The trap is subtler. At that price nobody reads your codebase, because nobody can afford to. So the fix addresses the symptom you described. If the cause was structural — the same logic duplicated in four places, a permission check that only exists in the interface — the symptom moves rather than disappearing, and you buy another fix. People arrive at expensive remediation having already spent several hundred dollars discovering this one payment at a time.
The distinguishing question is whether you can state your problem precisely. “The deploy fails with this error” is a task. “It keeps breaking” is a symptom, and symptoms need diagnosis before they need fixing.
What we charge
Our codebase review is $900, delivered in 5 business days. You keep the report whether or not you hire us afterwards. Everything beyond it is quoted once the review has told us what is actually there. Monthly engineering starts at $3,500/month per engineer.
We sell both reviews and ongoing engineering, so we have an obvious interest in you buying the first and then the second. Read the tier table with that in mind, and if the honest answer for you is a $50 marketplace fix, take it.
Before you pay anyone
- Run the free checks first. Our five-minute exposure check and production readiness checklist are written so you can work through them without hiring anyone, and plenty of people find that is enough.
- Decide whether you need a diagnosis or a fix. Paying for remediation before diagnosis is how budgets get spent on the wrong things.
- Read fix or rebuild before accepting any proposal to start over.
- Use the questions in how to vet an engineer on whoever you are considering, including us.
Questions about cost
Why do prices for this range from $20 to $50,000?
Because the same words describe entirely different work. At the low end you are buying one person fixing one named bug without reading the rest of the code. At the high end you are buying a team reconstructing the parts of your application that cannot support what it now does. Both are legitimately described as 'fixing a vibe-coded app', and the gap between them is what the guide above exists to make legible.
Is a cheap marketplace fix a mistake?
Not if the problem is genuinely isolated and you can describe it precisely. A broken build or a single failing form is a well-defined task and paying agency rates for it would be wasteful. The failure mode is using that tier for a structural problem: you get a fix that works, nobody understands why it broke, and the same underlying fault surfaces somewhere else next month.
Should I pay for an audit before paying for fixes?
Usually yes, because any remediation quote produced before someone has read the code is a guess with a number attached. A review costs a fraction of the remediation and it is the only thing that makes the larger quote meaningful. It also gives you something to take to a second vendor for comparison, which is worth the price on its own.
How do I avoid paying for work I don't need?
Ask for findings ranked by consequence rather than by effort, and insist on the distinction between 'unsafe now', 'will break under load', and 'stylistically not how I would have done it'. That third category is where budgets disappear. A vendor who cannot draw those lines clearly is either not looking carefully or is not incentivised to.
What does Vibe Code Engineers charge?
Our codebase review is $900, delivered in 5 business days. You keep the report whether or not you hire us for anything afterwards. Remediation and monthly engineering are quoted after the review, because that is the first point at which a number means anything. Monthly engineering starts at $3,500/month per engineer.
Want a real number for your app?
A fixed-price review is the point at which an estimate stops being a guess. You keep the report either way.