An AI app builder turns a description into a working application. They have got good enough that the interesting question is no longer “can it build it?” but “what happens next?”
This page splits the category into two groups, because they are genuinely different products that get reviewed as if they were the same.
Two categories, not one
App builders — Lovable, Bolt, Replit, v0, Base44 — generate software and give it to you. You are the owner, the maintainer and the operator. They compete on build quality, iteration speed and control.
Business builders — currently a much smaller group, including Empyre — generate the software and then keep operating it. They compete on what happens in the weeks after launch: who fixes the bug, who writes the pricing page, who stops the AI spend running away.
Choosing between the groups matters more than choosing within them.
App builders
Lovable
Lovable (lovable.dev) is an AI app builder: you describe an app in chat and it generates a working full-stack application on Lovable Cloud, its managed backend, with hosting on lovable.app addresses and your own domain on paid plans. Its pricing page, read on 14 October 2026, lists a Free plan with no card needed, Pro and Business plans billed per month with 100 monthly credits (shown as €25 and €50 to a visitor in Europe), and volume-priced Enterprise. It also publishes an MCP server and connectors. Full comparison →
Bolt
Bolt (bolt.new, by StackBlitz) builds a full-stack app from a prompt in a development environment that runs in the browser, and now hosts what it builds. Its pricing page, read on 14 October 2026, lists website hosting and unlimited databases from the Free plan ($0, 1M tokens a month), Pro at $25 a month with custom domains and no Bolt branding, Teams at $30 per member a month, and custom Enterprise. Full comparison →
Replit
Replit is a cloud development platform with an AI agent built in. It says you can “create, launch, and grow apps, sites, tools, and businesses in one place” from a plain-language description, with authentication, a database, hosting and monitoring built in, and a real IDE underneath. Its pricing page, read on 14 October 2026, lists Core at $20 a month ($18 billed annually), Pro at $100 ($90 annually) with parallel agents, and quoted Enterprise. Full comparison →
v0
v0 (v0.app) describes itself as “an AI agent that helps anyone create real code and full-stack apps and agents”. It builds UI and backend logic, connects to your APIs and databases, and publishes with one click to its maker's hosting or opens a pull request for review. Its pricing page, read on 14 October 2026, lists a Free plan with a daily message limit, Plus at $30 per user a month, Business at $100 per user, and custom Enterprise. Full comparison →
Base44
Base44 (base44.com, part of Wix) turns a plain-language prompt into apps, websites and AI agents with a built-in backend, database, authentication, email and hosting, and offers “Superagents” that automate workflows, manage data and keep running when you are not there. Its pricing page, read on 14 October 2026 with annual billing, lists Free (25 message credits a month, up to 5 apps), Starter at $16, Builder at $40, Pro at $80 and Elite at $160 a month, with two-way GitHub sync from Builder up. Full comparison →
Business builders
Empyre
Describe a business in plain words; eight agents build it, publish it to its own address, and keep working on it. The CTO commits and publishes, the Tester finds regressions, the CMO writes the launch content, the CLO produces the legal pages and the CFO refuses spend that breaks the budget. Every booking, order and sign-up lands on the company's calendar and in your inbox, and an event that names an executive is handed to it when it starts. You can bring people in: invite a co-founder, a developer or a viewer by email, each with their own sign-in and their own level of access to the company, while the creator stays the owner and pays for the credits. A new company follows the stack you name, and an imported repository stays in its own language. Web only, and newer than the app builders — those are the trade-offs.
How to pick in five minutes
Run through these in order and stop at the first one that fits.
- Do you already have a codebase?Then you want a tool that works inside it: an editor such as Cursor, an agent such as Devin, or v0 opening a pull request. Empyre can also import the repository and continue it.
- Do you need a language other than TypeScript?Empyre builds the runtime you name — Go, FastAPI, Django, Rails, or another — including for a new company, and continues an imported repository in its own language. Replit also covers more than TypeScript. Lovable, Bolt and v0 are in the JavaScript ecosystem.
- Is this a throwaway prototype?Use Bolt. Nothing to install, instant preview, no commitment.
- Will you maintain the product yourself?Then any of the app builders will serve you; pick on feel. Lovable is the safest default.
- Nobody is going to maintain it?Then an app builder will hand you a repository that slowly rots. That is the case Empyre exists for.
Frequently asked questions
What is the difference between an AI app builder and an AI coding agent?
An app builder produces a whole application from a description and usually hosts it. A coding agent works inside an existing codebase, making changes you review — Claude Code, Cursor and GitHub Copilot are examples. See AI coding agents.
Which AI app builder is best for a SaaS?
For the application itself, Lovable. For the whole SaaS — app, release, accounts, pricing page, terms, launch content — Empyre, because those are separate agents rather than separate tasks for you. There is a step-by-step walkthrough at how to build a SaaS with AI.
Do AI app builders lock you in?
Ask specifically about the repository. Any tool that puts the code in a Git repository you control is low-risk. Empyre creates the repository in your GitHub account, or in its own with you made admin the moment you connect GitHub, so you can clone it and keep your own copy at any time. A company is deleted seven days after its plan ends, but its repository is not.
Try Empyre free for 3 days
Describe a business in plain words and watch eight AI agents build and deploy it. Starter is free for the first 3 days.
Related
Last updated 2026-11-02. Competitor descriptions reflect each product's publicly documented capabilities at that date; they change often, so check the source before relying on a detail.