TL;DR. A website shows information; an app does things with it. If your project needs a database, user accounts, or any kind of "save this and show it back later," you need an app builder. If it's static pages with maybe a contact form, a website builder is enough and simpler. Most "AI website builders" can't cross that line; most "AI app builders" do both.
The line between website and app
The practical test is one question: does your project need to remember anything about a visitor?
A website doesn't. It shows the same pages to everyone. Your content is embedded in the HTML — text, images, maybe a contact form that emails you. When you want to change something, you edit the content and republish. Examples: a restaurant menu, a portfolio, a marketing site for a product, an event landing page.
An app does. It stores data that comes from users and serves it back — possibly to the user who typed it in, possibly to other users, possibly filtered or transformed. Examples: a habit tracker (saves what you did each day), a family chore app (tracks who did what), a client intake form (stores submissions), a simple inventory tool, a team wiki, a small SaaS product.
If you're uncertain whether you need an app or a website, a few diagnostic questions:
- Will different visitors see different content, based on who they are? → App
- Do you want to save user submissions somewhere you can look at later? → App
- Do users need to log in? → App
- Is the content the same for everyone? → Website
- Will you update content rarely (a few times a year) or often (daily or hourly)? → Rarely → website; often and by different people → app
What each type of builder actually gives you
The distinction is technical, not marketing. Here's what's under the hood:
| Capability | AI website builder | AI app builder |
|---|---|---|
| Static pages (HTML/CSS/JS) | Yes | Yes |
| Contact form that emails you | Usually yes | Yes |
| Database for user-submitted data | Usually no | Yes |
| User accounts / login | Usually no (or a subscribe-for-email widget) | Yes |
| Per-user content (dashboards, feeds) | No | Yes |
| API endpoints / server-side logic | No | Yes |
| Integrations (Stripe, third-party APIs) | Template-only (Stripe buttons, Calendly embeds) | Full API integration |
| File uploads from users | No | Yes |
| Complexity floor | Very low — AI writes HTML, you're done | Higher — AI needs to handle data model, API, and UI |
| Good for | Marketing sites, portfolios, landing pages | Tools, dashboards, trackers, small SaaS |
The "AI website builder" category includes tools like Wix AI, Squarespace AI, Hostinger's AI Website Builder, and 10Web. They're good at generating the visual design and content for a brochure site: pick a style, describe what the business does, get a polished multi-page layout. They're not designed for building things that save state.
The "AI app builder" category includes tools like Lovable, Replit, Bolt.new, v0, Cursor (with deployment), and Hatchable. These write real code — HTML, JavaScript, a backend — and can build apps that save data to a database. Most of them can also build plain websites, but using an app builder for a website is a bit like using a truck to deliver a pizza; it works, but it's more machinery than you needed.
Which to use when
A quick guide. If your project is:
- A personal portfolio, a band site, a restaurant menu, a wedding page, an event invite, a one-pager for a product. → Website builder. You want the fastest path to a polished, static page, and you don't need a database. Most of these tools have templates that are hard to beat on visual quality.
- A habit tracker, a chore chart, a personal dashboard, a family inventory, a simple CRM, a reading log, a workout tracker, a client intake form. → App builder. You need to save data and show it back. An AI app builder is the right tool.
- A SaaS product with signups, subscriptions, and multiple users. → App builder. On most platforms this eventually triggers paid plans — commercial use or usage caps. A few (Hatchable) let small commercial apps stay on the free plan indefinitely; you only pay if you want public publishing or a specific project outgrows default resource limits.
- A brochure site for a business that also has a "book an appointment" widget. → Website builder with a third-party integration (Calendly, Cal.com, Acuity). Trying to build the booking system yourself is overkill when embedding someone else's works in 30 seconds.
- An internal tool for your team: tracking requests, logging things, managing a process. → App builder. This is the sweet spot for "AI builds your app, nobody maintains it on a code level, it just runs."
The gray zone: landing pages with forms that actually do something
Lots of projects start as "just a landing page" and turn into "a landing page that also stores signups in a database and shows them on a little admin screen." That's the gray zone, and it's where the distinction gets confusing.
The pragmatic rule: if the form matters, use an app builder. Website builders will usually email you when someone submits a form, but the submissions live in your email thread, not in a searchable place, not deduplicated, not easy to export. If the submissions are a business output — leads, signups, RSVPs you'll actually reference — you want them in a proper table with a real UI to view them. That's an app.
Why the marketing makes this confusing
Most platforms blur the line on purpose. "AI builder" sounds broader than "AI app builder" or "AI website builder," and platforms want to own both categories in search results. The keyword volume shows it: people type "free ai website builder" 6,600 times per month and "free ai app builder" 2,900 times per month, and the tools ranking for both terms aren't necessarily good at both.
A quick check: look at the demos a platform shows. If the demos are all marketing pages with images and text, it's a website builder. If the demos include dashboards, trackers, CRMs, or tools — it's an app builder. Demos are marketing but they're more honest than category labels.
Where Hatchable sits
Hatchable is an AI app builder (and hosting platform). It's designed for the "needs a database" projects, not the "just needs a landing page" ones. For a plain marketing site with no user data, Hatchable works but is overkill — Wix AI or Squarespace AI will ship a visually-polished site faster because they have thousands of templates tuned for it.
Where Hatchable is the right fit: the gray-zone and app-builder cases above. Projects that need a database. Internal tools. Family/small-team apps that need user accounts. Small commercial apps. Anything where the thing the app does matters more than how it looks. We let you bring your own AI (Claude, Cursor, ChatGPT, Codex) to build, and we host the result with database, auth, and storage included. Free forever (commercial use included). Paid tiers only kick in if you want public publishing on a custom domain ($12/mo Pro) or a specific project outgrows default resource limits ($39/mo App tier).
If you're reading this because you typed "free ai website builder" into Google but what you actually need is a tracker or a small tool: you wanted an app builder. That's the quiet truth behind a lot of the "free ai website builder" search traffic.
Building an app, not just a page?
Hatchable is a free AI app builder. Database, auth, storage included. Bring your own AI.
Get started free →Frequently asked questions
Can AI website builders make apps?
Some can, in a limited way. They'll let you add a "store" section with product listings backed by their own database, or a simple "members area" with auth. But you're stuck in their supported patterns — you can't build an arbitrary app. For anything beyond a small template-fit use case, you want a real AI app builder.
Can AI app builders make websites?
Yes, easily. A website is a subset of what app builders can do — just leave out the database part. The tradeoff: you'll spend more time on design than you would on a dedicated website builder, because app builders prioritize function over template quality. For a pure marketing site, a website builder ships a better-looking result faster.
What's the cheapest way to build a small app?
An AI app builder on a free tier, assuming you already have access to an AI tool (most have free tiers). Build with Claude's free tier or ChatGPT, deploy to a free hosting platform, stay personal-use. This stack is genuinely zero dollars until you want to publish publicly or take payments.
Do I need to know how to code for an AI app builder?
No. The whole point of AI app builders is that you describe the app in plain English and the AI writes the code. You only need to know how to describe what you want. Most users never read the generated code — they iterate by describing changes ("the header feels cramped; give it more space") and letting the AI handle the implementation.
Is a website builder or an app builder faster?
For a pure website (no database, no user data), a website builder ships a polished result in minutes because the templates are tuned for it. For anything with data behind it, an app builder is faster because a website builder can't really do the job — you'd end up stitching together a website builder + a separate database + a separate auth system. An app builder bundles that.
What does "free app builder" include that a paid one doesn't?
Usually the same build capabilities, with caps on usage. Free plans typically exclude custom domains and cap storage or bandwidth. Some platforms also block commercial use (no charging your users) on free tiers; others (including Hatchable) let small commercial apps stay on the free plan. What you can build is usually the same either way — the paid tiers gate publishing, scaling, and sometimes commercial use.