How to build a mobile app with AI

By the end of this guide you will have a working mobile app generated from a written description, running on your own phone, with a clear idea of what it takes to publish it. You do not need to write code to get there. An AI app builder turns your prompt into screens and logic, and you refine the result by chatting with it or editing it visually.

To build a mobile app with AI, you choose a builder, write a short product brief, generate a first version, test it on a real device, and fix what is wrong before you think about the stores. This guide covers each step and compares six tools from our Coding category.

Key takeaways

• Write a short brief with the app's purpose, its main screens and the data it needs, generate a first version, then refine it one change at a time.
• The main decision is how much control you want: prompt-driven builders, a no-code visual editor, or a visual builder that exports source code.
• Free plans are limited: RapidNative's Freemium plan has 20 credits a month and 5 screens per project, and Thunkable's free 2,000 AI tokens are a one-time grant.
• Test on a real phone and plan time for store review, since publishing is the step most beginners underestimate.

What you need before you start

• A one-paragraph idea. Who the app is for and the one thing it should do.
• A phone to test on. An iPhone or Android phone, since several tools preview apps live on a device.
• An account with your chosen builder. Most have a free plan or free tier to start.
• Developer accounts later. Publishing to the Apple App Store and Google Play needs your own developer accounts, which you can set up when the app is ready.
• Time. A first prototype takes under an hour. A polished app takes much longer.
• Difficulty. Easy for a prototype, moderate once you add accounts, payments and publishing.

Which kind of AI tool fits this job

Choose by how you like to work and what you want to own at the end.

Prompt-driven builders that generate real code. RapidNative turns prompts, sketches, screenshots or product requirements documents into React Native and Expo projects, and lets you open the app on a phone with Expo Go. Bolt.new is a browser-based builder that makes websites, web apps and mobile apps, with mobile building through its Expo integration. Anything builds web and mobile apps from a chat, includes a database, accounts and payments, and can publish to the App Store.

No-code editors with an AI starting point. Thunkable generates screens, logic and design from a prompt, with a Plan mode that outlines the app first, then lets you refine it in a drag-and-drop editor. FlutterFlow is a visual builder for Flutter apps with AI generation, templates, and code export on paid plans.

Builders that bundle a backend and agents. Blink builds web apps, native iOS and Android apps and AI agents from a description, with a SQL database, sign-in and Stripe payments set up for you.

Step 1: Write a one-page brief

The better the brief, the better the first version.

1. Write one sentence on who the app is for and what problem it solves.
2. List three to five screens, such as sign-in, a list, a detail page and settings.
3. List the data the app stores, for example tasks, bookings or messages.
4. Note any must-haves such as user accounts, payments or notifications.

Check it worked by handing the brief to a friend and seeing if they can sketch the screens from it.

Step 2: Pick a builder that matches your goal

You end this step with one tool chosen and an account created.

1. Decide whether you want an app you can export as code or one that stays inside the platform.
2. Check how it prices usage. Several tools meter by credits or tokens rather than by app.
3. Check for the features you need, such as a database, sign-in or payments.
4. Use the comparison table below to see plans and limits side by side.

Check it worked by confirming the free or entry plan lets you generate at least a first version.

Step 3: Generate the first version from your brief

The goal is a first set of screens you can click through.

1. Paste your brief into the builder's prompt box. RapidNative also accepts a sketch, a screenshot or a pasted requirements document.
2. If the tool has a planning mode, use it first. Thunkable and Bolt.new both list a Plan mode that maps out the build before code is written.
3. Let the builder generate the screens.
4. Click through every screen in the preview.

Check it worked by being able to move through the main flow from the first screen to the last.

Step 4: Refine one change at a time

Small, specific edits give better results than big rewrites.

1. Fix the layout and wording first, using chat or click-to-edit where the tool offers it.
2. Add features one at a time, such as sign-in, then data, then payments.
3. Use version history if the tool has it. Bolt.new saves a copy after each prompt, and RapidNative lets you roll back to earlier versions.
4. Keep a running list of problems and fix them in order.

Check it worked by having each change visible in the preview without breaking an earlier screen.

Step 5: Connect data, sign-in and payments

Real apps need somewhere to keep their data.

1. Turn on the built-in database or connect one. RapidNative can switch to Supabase or a REST API, and Thunkable offers local storage or Supabase.
2. Add sign-in if users need accounts.
3. Add payments only when the rest works. Anything handles payments through Stripe on the web and RevenueCat on mobile, and Blink includes Stripe payments.
4. Test with fake data and a test account, not real customers or real card details.

Check it worked by creating a test account, adding a record and seeing it again after you close and reopen the app.

Step 6: Test on a real phone

A preview in the browser is not the same as the app on a device.

1. Install the tool's preview option on your phone. RapidNative uses Expo Go, and Thunkable uses the Thunkable Live app.
2. Walk through every screen with touch, not a mouse.
3. Try bad input, no internet and a small screen.
4. Share the preview link with two or three people and watch where they get stuck.

Check it worked by completing the main task on your phone without help.

Step 7: Prepare to publish

Publishing involves accounts, review and rules that a builder cannot skip for you.

1. Check what the tool does at this stage. Thunkable publishes to the Apple App Store, Google Play and the web, Anything can publish to the App Store, and FlutterFlow offers one-click App Store and Google Play deployment on paid plans.
2. Create the required developer accounts and prepare an icon, screenshots and a privacy policy.
3. Check your plan allows what you need. Some code export, custom domain and publishing features are paid only.
4. Submit, and expect the store to review the app before it goes live.

Check it worked by receiving the stores' review result and installing the published version on a clean device.

Tools for this job compared

Tool	Good fit for	Pricing	Stated limits
RapidNative	Prompt, sketch or screenshot to a React Native and Expo app on web, iOS and Android	Freemium, paid from $20/mo (checked 24 Oct 2026)	Freemium: 20 credits a month, 5 a day, 5 screens per project; code export starts on Starter
Thunkable	No-code apps for iOS, Android and web with a visual editor	Freemium, paid from $19/mo (checked 24 Oct 2026)	Free: 2,000 AI tokens one time, no private projects; testing downloads expire after 72 hours
Anything	Chat-built web and mobile apps with database and payments	Paid, from $19/mo (checked 24 Oct 2026)	Building requires a paid plan; monthly credits expire at the end of the billing cycle
FlutterFlow	Visual Flutter apps with code export on paid plans	Freemium, paid from $39/mo (checked 24 Oct 2026)	Free plan: 2 projects and 5 AI generation requests in total; code and APK download need a paid plan
Bolt.new	Browser-based building with Expo for mobile	Freemium, paid from $18/mo (checked 24 Oct 2026)	Free: 300K daily token limit and 1M monthly cap; no custom domains; no public API, CLI or SDK
Blink	Native apps with a built-in backend, on the web	Freemium, paid from $25/mo (checked 24 Oct 2026)	Free credits are 5 a day, capped at 30 a month; free projects are public

Prices and plan limits change, so confirm the current terms on each vendor's site before you subscribe.

Common mistakes to avoid

• Starting without a brief. Vague prompts produce generic apps that need many rounds of fixing. Fix it by writing the purpose, screens and data first.
• Changing everything at once. A big edit can break working screens and burn credits. Fix it by making one change at a time and using version history to roll back.
• Judging the app only in the browser. Touch, screen size and connectivity behave differently on a device. Fix it by testing on a real phone before you share it.
• Ignoring the credit or token limits. RapidNative's free credits do not carry over, and Anything's monthly credits expire at the end of the billing cycle. Fix it by checking how usage is metered before you plan a long build.
• Collecting personal data without care. An app with accounts or payments stores other people's information. Fix it by using test data while building and having a person review privacy and security before launch.

How we put this together

This is an evidence-based guide built from each tool's listing in our directory, which is compiled from the vendor's own site and pricing page. It is not a review based on using the tools. We don't rank tools, and nobody paid to be included. Some outbound links may be affiliate links; see our disclosure.

Frequently asked questions

Can I build a mobile app with AI for free?

You can start for free, but with limits. RapidNative, Thunkable, FlutterFlow, Bolt.new and Blink all list free plans, while Anything requires a paid plan to build. Free plans cap credits, tokens, screens or projects, and some restrict publishing or code export.

Do I need to know how to code?

Not for a first prototype. Thunkable is described as no-code, and the other builders generate the code for you. Reading the generated code helps once you add payments or accounts, and a developer should review anything that handles personal data.

Can I publish the app to the App Store and Google Play?

Several tools support it. Thunkable lists publishing to the Apple App Store, Google Play and the web, and FlutterFlow lists one-click deployment on paid plans. You still need your own developer accounts and must pass each store's review.

Can I own the code?

It depends on the tool. RapidNative exports the Expo code from the Starter plan, FlutterFlow offers code download on paid plans, and Anything lets you download code from its Code tab. Check the plan before you rely on export.

How long does it take?

The builders do not publish typical build times. A finished, tested app with accounts, payments and store approval takes much longer, and review times are set by the stores, not the builder.

Compare more options in our Coding category.