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How to Create a React Native App in 2026
Create a React Native app from scratch: set up Expo, build screens, add navigation and native features, then ship to iOS and Android. A step-by-step 2026 guide.

Nafis Amiri
Co-Founder of CatDoes

TL;DR: To create a React Native app in 2026, install Node.js, scaffold a project with npx create-expo-app, build your UI from native components like View and Text, manage data with React hooks, connect screens with React Navigation, add native features like the camera, then ship to the App Store and Google Play with EAS Build. This guide walks through each step with copy-paste code.
React Native lets you create a real iOS and Android app from a single JavaScript or TypeScript codebase. It renders genuine native UI components, not a web page in a wrapper, so your app gets the smooth, responsive feel users expect while cutting build and maintenance time roughly in half. This guide is written for developers who want to go from an empty folder to a published app, so every section includes the exact commands and code you need.
Table of Contents
Why Build Your App With React Native
Set Up Your Development Environment
Create Your React Native App
Build Your First Screen With Components
Manage State With React Hooks
Add Navigation Between Screens
Access Native Device Features
Test, Debug, and Ship to the App Stores
Build a React Native App Faster With CatDoes
Frequently Asked Questions
Why Build Your App With React Native
Picking a framework is one of the first decisions you make, and it shapes the whole project. React Native has become a default choice for startups and large companies alike because of one promise: manage one codebase, not two separate projects for iOS and Android.
Your team builds a feature once and it runs on both platforms. That gets you to market faster and makes every future update simpler. Because it uses JavaScript, developers can build mobile apps with skills they already have, without hiring separate Swift and Kotlin specialists.
There is also no performance penalty for most apps. When you write a component, React Native renders the platform's actual native control, so you get fluid animations and responsive scrolling rather than a website squeezed into a shell. For a deeper look at how it compares to alternatives, see our guide on Flutter vs React Native in 2026.
React Native vs Native Development at a Glance
Feature | React Native | Native (iOS/Android) |
|---|---|---|
Codebase | Single JavaScript codebase for both platforms | Separate codebases (Swift for iOS, Kotlin for Android) |
Development speed | Faster; write once, run on both | Slower; two separate development efforts |
Team size | Smaller; one JavaScript team can manage it | Larger; specialized iOS and Android developers |
Cost | Lower development and maintenance costs | Higher costs from larger teams and dual codebases |
Performance | Near-native for most use cases | The gold standard; direct access to all platform APIs |
Maintenance | Simpler; update one codebase to fix both | More complex; maintain two separate projects |
React Native is one of the most widely used cross-platform frameworks and consistently ranks as a top non-native framework on both the App Store and Google Play. For the majority of apps, it is the efficient middle ground: cross-platform speed without giving up native feel.
Set Up Your Development Environment
Before you write any code, install a few tools. Get this right once and you avoid most early headaches.
Start with Node.js (the current LTS release), which runs your JavaScript tooling and package manager, and a code editor such as Visual Studio Code. Confirm Node is installed:
Choose Your Path: Expo or the React Native CLI
There are two ways to create a React Native app, and the choice matters:
Expo (recommended for almost everyone in 2026): a managed toolchain that handles native build config, over-the-air updates, and cloud builds for you. You can test on a real phone in seconds without Xcode or Android Studio.
React Native CLI (bare workflow): full control over the native iOS and Android projects. Choose this only when you need custom native code that a library does not already provide.
This guide uses Expo because it is the fastest path from zero to a running app. If you are completely new to mobile, our primer on mobile app development for beginners covers the wider landscape.
Install the Platform SDKs (Optional)
With Expo you can build in the cloud, so local SDKs are optional at the start. When you want local iOS simulators, install Xcode on a Mac; for Android emulators, install Android Studio and set up a virtual device in the AVD Manager. The infographic below shows how the pieces fit together.

Create Your React Native App
With the tooling ready, scaffold a new project. One command creates the whole app for you:
The last command starts the Metro bundler and prints a QR code. Install Expo Go on your phone, scan the code, and your app loads instantly. Press i to open the iOS simulator or a for an Android emulator. If scanning gives you trouble, our guide on the Expo Go QR code covers the common fixes.
Prefer the bare workflow instead? Use the community CLI:
A clean folder structure pays off as the app grows. Create these directories in your project root:
Build Your First Screen With Components
Components are the building blocks of every screen. Coming from the web, you leave <div> and <span> behind and use React Native's own primitives:
View: the core container that handles flexbox layout, styling, and touch.
Text: displays and styles all text, with nesting support.
Image: renders images from a URL, a bundled asset, or a local file.
The power comes from combining them. A reusable button is a Text inside a TouchableOpacity, styled with StyleSheet:

Manage State With React Hooks
A static screen is not much of an app. To react to user input you manage state, and React hooks make that simple.
useState lets a component remember values, like text typed into a field. When state changes, React re-renders the component automatically. useEffect handles side effects such as fetching data or setting up a listener when a screen loads.
Those two hooks cover most apps' state needs. To see these patterns in finished projects, browse our practical React Native app examples.
Add Navigation Between Screens
Real apps have more than one screen. React Navigation is the standard library for moving between them. Install it and its dependencies:
Then wrap your screens in a navigator. A stack navigator pushes and pops screens like a settings menu:
From any screen you call navigation.navigate('Details') to move forward, passing data along if you need to. The full API, including tab and drawer navigators, is documented at reactnavigation.org.
Access Native Device Features

The real strength of React Native shows when your app uses the phone's hardware: camera, GPS, push notifications, and more. It reaches this hardware through native modules, bridges that let your JavaScript call platform code.
You almost never write those bridges yourself. The ecosystem has well-maintained libraries for nearly every feature, and with Expo many are one install away. Here is a camera in a few lines using expo-camera:
The library handles permission dialogs and hardware differences across iOS and Android, so you focus on your app's logic. You can find a package for almost any feature in the Expo documentation.
Test, Debug, and Ship to the App Stores
With the app built, the last stretch is making it stable and getting it published.
Debugging
React Native ships with React Native DevTools built in. Press j in the terminal running your bundler to open a Chrome DevTools session where you can set breakpoints, inspect components, and watch network requests. (Flipper was the standard for years but is no longer bundled with recent React Native versions.)
Testing
Unit tests with Jest verify individual components and functions in isolation.
End-to-end tests with Maestro or Detox simulate a real user tapping and swiping through complete flows.
Shipping to the App Store and Google Play
When you use Expo, one command builds signed binaries in the cloud, no local Xcode or Android Studio required:
EAS Build produces an .ipa for the Apple App Store and an .aab for Google Play, and eas submit can upload them for you. Before release, prepare your store metadata: app icons, splash screens, screenshots, and listing descriptions.
Build a React Native App Faster With CatDoes
Everything above is the hands-on path: several tools to install, config to manage, and code to write and maintain across every screen and feature. It works, and it teaches you how React Native fits together.
If your goal is a shipped app rather than the process, CatDoes handles the same workflow for you. You describe the app you want, and the AI agent builds it, wires up the backend, and submits it to the App Store and Google Play, all on React Native under the hood. You get a real codebase you can export and keep, without the setup.
Frequently Asked Questions
Is React Native performance good enough for production?
Yes, for the large majority of apps. React Native renders real native components, so animations and controls feel at home on iOS and Android. Performance limits only tend to show up in niche cases like intensive 3D gaming or heavy on-device computation.
What is the React Native New Architecture?
It is a rewrite of React Native's internals that replaces the old asynchronous bridge with a faster, more direct link between JavaScript and native code. It is the default in current versions and delivers faster startup and smoother interactions.
Should I use Expo or the React Native CLI?
Use Expo unless you have a specific reason not to. It handles native config, cloud builds, and updates, and you can still add custom native code with development builds. Reach for the bare CLI only when you need deep native control from day one.
Is it hard to access native device APIs?
No. For the camera, GPS, Bluetooth, and most hardware, you install a community-vetted library that wraps the native code in a clean JavaScript API. You rarely touch native code yourself.
Is React Native still actively maintained?
Yes. Meta and a large open-source community ship frequent releases, with recent versions adding modern React support, the New Architecture, and faster tooling. It is a stable foundation for long-term projects.
You now have every step to create a React Native app: set up the environment, scaffold with Expo, build screens and state, add navigation and native features, then test and ship. Want to skip the setup and go straight to a published app? Build your app with CatDoes.

Nafis Amiri
Co-Founder of CatDoes


