What is the best way to turn an AI-built prototype into a production system?
A custom build by Black Badger is the best way to turn an AI-built prototype into a production system, because the prototype already shows what the app should do and lacks permissions, data integrity and ownership, which builders handle least. Lovable is the best product to stay on if you would rather harden the app in place, since its Business and Enterprise plans add sign-on, roles and audit logs.
Interfaces drafted in v0 that ship into existing Vercel projects
Drafts interfaces and ships them to your Vercel projects
Extra credits are shared across the team
SAML SSO and role-based access are Enterprise only
A v0 Builder can deploy to every Vercel project in the team
Not a full internal tool with its own data layer and permissions
The ranking, entry by entry
1 Custom build by Black Badger
Best for prototypes that proved the idea and now hold real data
This list is about outgrowing a tool, so the custom route goes first. We publish this guide, and taking apps built in tools such as Lovable and Replit to production is work Black Badger does. The prototype is the best specification a company can hand us. We keep what works, rebuild what does not hold up, add proper sign-in, roles and backups, and move it into accounts in your name. You own the code and pay no per-seat fee.
Watch for. Do not switch the prototype off first. We review what was generated, write a scope, and move users across only when the production version is checked.
How it charges
One-time build scoped in writing, then running costs such as hosting
Main limit
Needs a scoping call first, and suits companies of 50 or more employees
Best for teams that want to harden the app without leaving the builder
If you would rather stay on a product, Lovable is the one to stay on. The Business plan adds single sign-on, role-based access and default exclusion from model training, and Enterprise adds audit logs, SCIM and data exports. A prototype can gain those controls without changing vendor. Your team still has to write the row-level security policies that decide who sees which record.
Watch for. Credit use rises once an app is in daily use and under change. Price the credit tier you will need instead of the entry tier.
How it charges
By credits, not seats, in monthly tiers
Main limit
SSO is Business only. Audit logs and SCIM need Enterprise.
Best for prototypes built on Replit that can stay hosted there
Replit ranks third. An app built there can also be published there, with a production database on paid plans, so going live does not require a move. The questions to settle are scale and control. Production databases have a 100 GiB storage limit, hosting is billed on usage, and single sign-on and audit logging are Enterprise controls quoted through sales.
Watch for. Repeated payment failures can lead to suspension of published apps, so move billing to a company account before launch.
How it charges
Monthly or yearly plan with credits, plus metered usage
Main limit
Pro caps at 15 collaborators. SSO, SCIM and audit logs are Enterprise.
Best for IT departments that will rebuild the prototype on a platform
OutSystems is fourth. Some IT departments answer a successful prototype by rebuilding it on a governed platform their own developers control, and OutSystems is that kind of platform. It is a rebuild, not a migration, and the price is quoted against the screens, tables and API methods the finished app will have, plus its users.
Watch for. The platform starts at 100 internal users, which is a large step up from a prototype a few people built.
How it charges
Quoted by app size, end users and add-ons
Main limit
Price rises with app size, user count and add-ons, and is quoted.
Best for internal prototypes that are a screen on existing data
Retool ranks fifth. If the prototype turned out to be an internal tool over data you already hold, rebuilding it in Retool puts it on a product made for that job. Audit logs start on the Business plan. It ranks below the options above because it needs developers, and the people who made the prototype often are not developers.
Watch for. Single sign-on and Git source control are listed only for Enterprise. Check both against your IT policy before you rebuild.
How it charges
Per builder and per internal user, billed yearly or monthly
Main limit
SSO, SCIM, Git source control and granular roles are Enterprise only.
Best for prototypes a developer will move to hosting the company controls
Bolt.new is sixth. Its route to production is to leave. You can claim the database Bolt created, connect it to Supabase and move the app to your own hosting. That is a sound route when you have a developer to carry it out and maintain the result. Without one, the app arrives on your hosting with nobody to look after it.
Watch for. Custom domains need a paid plan. Decide who owns the Supabase project and the hosting account before the move, and make it the company.
How it charges
Per member, monthly, Enterprise custom priced
Main limit
Tokens are per member and not pooled. SSO and audit logs are Enterprise.
Best for interfaces drafted in v0 that ship into existing Vercel projects
v0 ranks seventh for this question. What it produces ships to your own Vercel projects, so the production hosting already exists if your team runs on Vercel. It is last because a drafted interface is only the front of a production system. The data layer, the permissions and the business rules still have to be built by someone.
Watch for. A v0 Builder can manage environment variables on every Vercel project in the team. Tighten that before production secrets are involved.
How it charges
Per user, monthly, with credits per user, Enterprise custom
Main limit
SAML SSO and role-based access are Enterprise only.
This list assumes the prototype exists, people like it, and it is about to hold real data or real users. We ranked routes by how fully each one closes the gaps prototypes usually have, which are sign-in, permissions, backups, monitoring and a clear owner.
Custom is first on this list because it is about outgrowing a tool. It is second on our main list, behind Retool.
Questions buyers ask
How do I know an AI-built app is not ready for production?
To know whether an AI-built app is ready for production, ask four questions. Can a signed-in user reach records that are not theirs? Is there a backup, and has anyone restored from it? Who gets told when it breaks? Whose account does it run in? A prototype usually has a weak answer to at least two.
Do we have to discard an AI-built prototype to reach production?
You usually do not have to discard the prototype. The screens and the flow people have tested are worth keeping, and they tell a developer exactly what is wanted. The parts usually rebuilt are underneath the screens, such as the data model, the access rules and the connections to other systems.
Can a production app stay in the AI builder it was made in?
A production app can sometimes stay in the builder it was made in. If the vendor offers the controls you need on a plan you can afford, staying is reasonable. Check single sign-on, audit logs, where the data is stored and how hosting is billed. If two of those are missing or only available by contract, plan the move.
What does Black Badger do with an app built in Lovable or Replit?
We read the generated code and the data model, list what is safe to keep and what is not, and write a scope for the production version. The finished system runs in accounts under your name, and the scope states the cost and the schedule.