CentriWebAn AI app builder such as Lovable, Bolt or Replit can turn a written description into a working app in an afternoon, and for a prototype, a demo or a simple internal tool that is often enough. Where it falls short is everything around the code: security, how customer data is stored, connecting to the systems you already run, and someone being responsible for it next year, which is the work a developer is paid for.
A note before the comparison: CentriWeb builds and looks after custom software, so we have a view. We have kept the facts about each AI app builder to what its own pricing and documentation pages said when we opened them, as at November 2026. Check their pages for current prices.
AI app builders and developers side by side
| AI app builder | Freelance or in-house developer | A studio that builds and looks after it | |
|---|---|---|---|
| What it is | You describe the app in plain words and the tool writes and hosts the code | A person writes the code to your brief | A team builds the system and stays responsible for it |
| How it charges | A monthly plan with credits or tokens that each request uses | Hourly, daily or a fixed project price, or a salary | A project price, then an agreed monthly amount for upkeep |
| Who maintains it | You, by asking the AI for changes | The developer, while they are available | The studio, under the agreement |
| Who it suits | Testing an idea, a demo, a tool for a few staff with no sensitive data | A defined build with a clear owner on your side | A system the business relies on daily that touches customers, money or private data |
What an AI app builder does well
The appeal of vibe coding, the name people now use for building software by describing it to an AI, is speed. You can see a working screen within minutes, click through it, and change it by typing what you want. That is a real advance for a business owner who used to need a designer, a developer and several weeks just to see whether an idea made sense.
Good uses we see:
- A clickable prototype to show staff, investors or a developer exactly what you mean, which saves hours of explaining.
- A one-off internal tool such as a calculator, a checklist or a simple form for a few staff.
- Testing demand with a landing page and a basic sign-up flow before you spend real money.
- Learning what you actually need. Building a rough version often shows which features matter and which you can drop.
How Lovable, Bolt and Replit charge
All three charge a monthly plan, and each request you make to the AI uses part of an allowance. Large or repeated changes use more of it, so the bill grows with how much you ask for, not with how many people use the finished app.
- Lovable: Lovable’s pricing page lists Free, Pro and Business plans. The free plan gives 5 build credits a day, up to 30 a month. Paid plan prices did not appear in the page text when we opened it, so check the page for current prices and the currency shown.
- Bolt: Bolt’s pricing page showed a free plan with 1 million tokens a month and a 300,000 daily limit, Pro at $25 a month starting at 10 million tokens, and Teams at $30 per member a month. The page shows a $ sign without naming the currency. Hosting and databases are included on the free and Pro plans.
- Replit: Replit’s pricing page showed Core at $20 a month ($18 billed annually) and Pro at $100 a month ($90 billed annually), again in $ without a currency named. It also mentions pay-as-you-go effort-based pricing, and says its Agent can make mistakes.
Where vibe coding runs out: security, data and upkeep
The code an AI writes can look finished and still be unsafe. Lovable’s own security documentation is clear about this. It runs a quick scan each time you publish and offers a deeper scan you start yourself, but it says misconfigured database access rules are a common cause of data leaks, that you are responsible for making sure your app meets the security requirements for its use, and that apps handling sensitive data should get an additional professional security review.
That is a fair warning from the vendor, and it applies to every tool of this kind. The gaps tend to show up in the same places:
- Who can see what. A customer should see their own records and nobody else’s. Getting those rules right is the part an AI is most likely to get subtly wrong, and the part you are least likely to test.
- Keys and passwords. Connections to payment, email or accounting systems need secret keys kept on the server, never in the browser.
- Connections to your real systems. A prototype with its own small database is easy. One that has to read and write to your CRM, your accounting software and your calendar without creating duplicates is a different job.
- Upkeep. Software needs updates when the services it connects to change. If nobody understands the code, every change becomes another round of asking the AI and hoping it does not break something else.
Can AI build an app for your business? Three questions
Before deciding, answer these about the app you have in mind:
- Will customers or the public log in to it? If yes, security and access rules matter from day one.
- Will it hold personal, health or payment information? If yes, you carry the obligations for that data whoever wrote the code.
- Would the business stop if it broke on a Monday morning? If yes, you need someone who can fix it fast and who knows how it was built.
Three noes: an AI app builder is a reasonable choice, and you may never need more. One or more yeses: treat what the AI produces as a prototype or a starting point, and have a developer review, rebuild or take responsibility for it before it goes live.
What a developer adds
A good developer does more than type code. They ask what happens when two people book the same slot, when a payment fails halfway, or when a staff member leaves and their access should stop. They design how data is stored so it can be reported on later, test the awkward cases, and write the system so another developer can pick it up.
The trade-off is time and money up front, and you have to manage the brief. Our guides on no-code against custom development and on what an MVP costs and how long it takes cover that side in more detail.
Who owns code an AI app builder writes
Lovable’s pricing page says you own your code, subject to third-party rights in the underlying AI models. Its GitHub documentation says projects live inside Lovable by default, that you can sync them two ways with a private GitHub repository, and that the repository stays yours with its full history if you disconnect. Bolt’s and Replit’s pricing pages did not cover ownership, so check their terms.
Copyright in AI-generated material is also still being worked through. The United States Copyright Office published a report on the copyrightability of AI outputs in January 2025. For what the law says by country about code a person writes for you, see our guide to who owns the code. This is general information, not legal advice.
Where a built and looked-after system fits better, and who it does not suit
A system built and maintained for the business makes sense when the app is part of how you earn or keep money: a customer portal, a booking and quoting tool, or an internal system your team uses all day. In those cases the cost of a data leak, a broken booking flow or a stalled change usually outweighs the saving from doing it yourself. CentriWeb’s custom software work covers that: we build the system, connect it to the tools worth keeping, and look after it afterwards, and we will tell you when an off-the-shelf product already does the job.
It does not suit everyone. Skip it if:
- the app is for a handful of staff and holds nothing sensitive
- you enjoy building and have the time to test and maintain it yourself
- you are still testing whether the idea works at all, in which case a builder’s paid plan is the cheaper experiment
A sensible path: prototype first, then decide
- Build a rough version in an AI app builder and click through it with two or three people who would use it.
- Write down what it must do, who logs in, and what data it holds.
- Answer the three questions above.
- If any answer is yes, take the prototype and your notes to a developer and ask them to review it before anything goes live.
- Agree who maintains it, and where the code and accounts live, before launch.
The prototype is rarely wasted. Even when a developer rebuilds it, it is the clearest brief they will ever get. Our guide to software maintenance cost covers what to budget once it is live.