Your v0 app looks ready to launch, but the part behind the screens still needs building. Here's what to do.
Sample before and after: interface finished, backend missing, illustrative
Before
- Finished screens
- Sample data
- No backend
- Nothing is saved; anyone can sign in as anyone
After
- Finished screens
- API and sign-in
- Database with access rules
- Real accounts, real data, protected
Is your v0 app finished, or does it only look finished?
- The screens look complete, but the data on them is hard-coded or comes from a sample file
- Sign-in exists as a form, but nothing on the server checks who the user is
- Buttons that should save, send or charge don't do anything yet, or only update the page
- There is a component for every screen but no agreed shape for users, accounts or orders
- You connected a database yourself and aren't sure the access rules are right
- A developer quoted you for the backend and you have no way to judge the number
Why does a v0 app need more work before launch?
v0 is built to produce interfaces: React components and Next.js pages, carefully styled, from a description or a picture. It is very good at that, and a polished front end is a real asset. Showing it to users and investors early is exactly what it's for. What a prompt can't settle is the product underneath. Who is allowed to see which records? What happens when a payment fails halfway through? Which data has to survive a deploy, and how is it backed up? Those decisions shape the data model, and the data model shapes everything else.
Generated interfaces often answer those questions with placeholders so the screens can render: sample arrays, a pretend user, server actions that report success without storing anything. Some projects connect a real database and sign-in provider along the way, often without the permissions and tests that make them safe. Either way, the distance between how finished it looks and how finished it is tends to be large. Treating that as a bug to fix leads to patching. Treating it as a product to finish leads to a backend designed once, properly.
How do we finish a v0 app properly?
- Two-day triage ($349, two working days): a senior engineer reads the v0 code and anything already connected behind it, then returns the five risks that matter most, what remains to be built, an indicative range, and a recommendation on how to finish it.
- Production Readiness Audit ($1,500, five working days) if you want a scored report and a fixed-price proposal before committing. Either way, the remaining build (data model, authentication, backend and integrations) is scoped and quoted at a fixed price from the triage or audit.
- Stabilisation (from $2,500, one to two weeks) or production hardening (from $6,000, three to five weeks) for anything already live: server-side authorisation, per-user access rules, migrations and tested backups, tests around sign-up and payments, CI with rollback and error tracking. The v0 front end is kept wherever it holds up.
- Optional managed AI engineering from $1,500 a month, three-month minimum, once real users are on it.
Questions about finishing a v0 app
Will you throw away the design v0 made?
No, unless part of it can't work with the real data. The interface is usually the strongest part of a v0 project. We keep the components and connect them to a backend rather than redrawing them.
Why can't you price the backend today?
Because it depends on decisions nobody has made yet, such as who can see what and how payments work. The triage turns those into a scope, and the scope gets a fixed price. Quoting first would be guessing with your money.
Can I keep designing new screens in v0?
Yes. Once the data model and API exist, a new screen is mostly a matter of wiring it to what is already there. We agree a simple pattern so generated components fit in without bypassing permission checks.
Where will the finished app be hosted?
Somewhere you control, with the repository and database in your name. We recommend a setup in the triage, but the accounts are yours.
What happens to the triage fee if I go ahead?
Half of it is credited against a sprint that starts within 30 days.
Tell us what's breaking, or what's slow.
We take on a limited number of engagements at a time and reply to every message, including the ones we're not the right fit for.