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Building an app with AI: what it really does, and what it doesn't

"Describe your idea, the AI does the rest": the promise is everywhere. It is partly true. Here is, concretely, what an AI can build for your restaurant, your salon or your club, and what remains your job.

Eyal Ouaknine · Published on November 12, 2026 · 5 min read

Can you really build an app with AI without knowing how to code?

Yes, for a usable first version. With Yatsury, you write one sentence describing your business, and the AI builds the app in a few minutes: the screens, the features, and the area where you manage your customers or members. You see a live preview, adjust it in plain language, and share the app with a link.

But "a first version" does not mean "a finished app". The AI doesn't know your prices, your opening hours or what your storefront looks like. It proposes a solid structure; it's up to you to fill it with the reality of your business. Used well, it saves you weeks. Misunderstood, it produces a generic app that nobody opens.

How an AI app builder turns one sentence into an app

Take a barber who writes: "My barbershop: clients book a slot with the barber of their choice, see the services and prices, and collect loyalty points." Here is what happens next.

The AI reads your sentence and identifies the needs: appointment booking, a list of services, loyalty.
It writes a plan for the app: the screens (home, booking, services, loyalty card), the information to manage (barbers, time slots, services, clients) and the possible actions (book, cancel, earn points).
It picks the features from a ready-made catalog: booking and calendar, loyalty card, reviews…
It sets up your organizer area, where you will see bookings and your clients.
You check the preview and make corrections: names, prices, photos, opening hours, colors.
You publish via a web link and QR code. The app opens in the browser and can be installed on the home screen.

An important point: at Yatsury, the AI doesn't write code. It writes a plan, built on features that already exist and are the same for every app. So a booking works like a booking, and you don't inherit code that nobody knows how to maintain.

What AI does well

Starting from scratch. It turns a vague idea into concrete screens. That is often the hardest step for someone who has never designed an app.
Choosing the right building blocks. Booking for a salon, catalog and cart for a shop, challenges and rankings for a padel club, events and tickets for a nonprofit.
Writing the first texts. Titles, descriptions, welcome messages: a first draft that you review.
Creating a logo and launch texts (with the subscription). Enough to announce the app to your customers without waiting for a designer.
Making changes fast. Want to add a queue or a poll? No need to start over.

What AI won't do for you

This is the part the ads leave out. Here is what stays in your hands, whatever the tool.

Knowing your business. Your real prices, opening hours, dishes, photos, cancellation rules: at best the AI makes them up, and you have to replace them with yours.
Guaranteeing accuracy. An AI can make mistakes. Review every text before publishing, especially prices and opening hours.
Deciding your offer. Should you take a deposit? How many points for a free haircut? Those are business decisions, not technical ones.
Opening your accounts. To accept online payments, you create your own Stripe account (Yatsury takes no commission on your sales). For the stores, you open your own developer accounts with Apple and Google.
Passing store review. Apple reviews every version (often within one to two days, with no guarantee). For a recent personal account, Google Play requires a closed test with 12 testers for 14 days. No AI shortens these timelines.
Bringing in customers. An app nobody knows about is useless. The QR code at the counter, the link in your Instagram bio or your WhatsApp group: you are the one who keeps it alive.

Examples: one sentence, one app

Features from the Yatsury catalog. Online payments (deposits, memberships, paid orders) require the subscription.
Business	What the AI suggests	What you fill in
Restaurant	Menu, takeout ordering, table booking, loyalty card, reviews	Dishes, prices, allergens, photos, pickup times
Barbershop	Booking by barber, services, loyalty	Barbers, durations, prices, cancellation rules
Padel club	Court booking, tournaments, scores and rankings, news	Courts, time slots, tournament rules
Fitness coach	Bookable sessions, plans, messaging, videos	Programs, plan prices, videos
Nonprofit	Events, news, polls, memberships, documents	Calendar, membership fee, documents

To go further for your line of business, see our pages for restaurants, salons and barbers or coaches.

Try it with your own sentence: the AI builds the app in a few minutes, with no account and no credit card.

Try this idea

How do you describe your idea to the AI?

The quality of the first version depends a lot on your sentence. Three things are enough: who uses the app, what they do in it, and what you want to manage.

Too vague: "An app for my restaurant." The AI will guess, and the first version will be generic.
Much better: "My restaurant: today's menu, customers order takeout, book a table and collect loyalty points."
Add what makes you different: "members enter their scores after each match", "clients choose their barber".
Don't try to say everything at once. Start with the essentials, then add features once you have the preview in front of you.

How much does it cost to build an app with AI?

With Yatsury, building, testing and publishing via a web link are free, up to 50 members per app, with a discreet "Made with Yatsury" mention. The AI that builds the app is free, as are ten tries a day of the Studio's AI tools; the AI-generated logo and launch texts are part of the subscription. The details are in our article on what is really free.

When your app grows, there is a single subscription, AI included: €24 per month with no commitment (about $26), or €240 per year (two months free). If you have your own AI key, it's €20 per month or €200 per year. The subscription adds unlimited members, online payments, removal of the mention, publishing to the App Store and Google Play, and AI inside the app: an assistant that answers your customers or members.

Good to know: publishing to the App Store and Google Play is in preparation (coming soon, with no publishing fee from us). Today, the app is published via a web link. Store fees are paid directly by you: $99 per year for Apple, $25 one-time for Google Play.

Does AI replace an agency or a developer?

For a shop, club or nonprofit that needs bookings, orders, loyalty or events, often yes: these needs are covered by standard features, and the AI assembles them very quickly. In France, an agency charges €7,000 to €50,000 (median €30,000, according to a 2026 La Fabrique du Net study of 283 French projects).

For a truly novel product, with business logic nobody has built yet, no: you will need developers. And if you are torn between several no-code tools, we wrote an honest comparison of Glide, Adalo, GoodBarber and Yatsury, including the cases where a competitor will suit you better.

Your app's data is hosted in Paris, in the European Union, and the app belongs to you. The simplest way to make up your mind is still to open the Studio in trial mode.

One sentence is enough to see what the AI builds for your business.

Build my app for free

A word from the founder

I build Yatsury with AI: I describe what I want, and it writes most of the code. But it doesn't decide anything for me: what to build, for whom, at what price, and what is good enough to be published, all of that remains my job. It's the same for your app.

Eyal Ouaknine

Frequently asked questions

Does the AI build a real app or just a website?

A mobile app that opens via a web link and can be installed on the home screen, with bookings, orders or loyalty depending on your business. The App Store and Google Play version is coming soon.

Do I need to review what the AI produced?

Yes, always. The AI proposes a structure and texts, but it doesn't know your prices or opening hours: review everything before you publish.

Is Yatsury's AI free?

Partly: the AI building your app and ten tries a day of the Studio's AI tools are free. The logo, launch texts and AI inside the app are part of the subscription.

Can I edit the app after the AI creates it?

Yes. You change texts, photos, prices and features in the Studio, without code, and you can add features from the catalog.

Apps for your business

Sources

La Fabrique du Net, study on the cost of building an app in France (283 projects, 2026)
Apple Developer Program
Google Play Console: registration fee and testing requirements for personal accounts