# Where StartupBuilder sits

URL: /start/where-startupbuilder-sits · Id: `page:start/where-startupbuilder-sits`

> App builders make the product, and StartupBuilder makes the business around it, with checkout, books, terms and agents.

bolt.new, Lovable, Replit and v0 build a site or an app. [StartupBuilder](/code/builders/startup) builds the business wrapped around a product, whichever tool built it.

## Two layers
The product is what a customer uses: its screens, its data and its code. An app builder turns a prompt into that layer.

The business is what the product needs to earn money and keep running. That means a [Site](/business/nouns/site) on your [Domain](/business/nouns/domain), payments through Stripe, sales, support, terms, books, and [Agents](/business/nouns/agent) in every [Role](/business/nouns/role). StartupBuilder turns one sentence into that layer, as records you change by asking.

## Bring a product you built elsewhere
Point StartupBuilder at the app. It maps the app onto a [Startup Template](/business/nouns/startup-template) and builds the business around it. The app keeps running where it runs, and [its guide](/start/guides/turn-my-app-into-a-business) lists what you get.

## Or build the product here
StartupBuilder builds the [Product](/business/nouns/product) too: an app, an API, a site, a service, an agent you sell, or data. [Products](/products) covers each kind. Either way, the business layer is the same, and so is every ask that changes it.

## A business, not an app
A product without the business layer has no checkout, no invoices, no terms and nobody answering email. StartupBuilder starts there. Every [guide](/start/guides) ends with what it created, so you see the business it built.