React vs. React Native – Which One To Choose and When?

React and React Native share the name for a good reason: the latter is based on the former. Both introduced by Facebook, they are open-source tools working with JavaScript. But developers use each to vastly different ends. The bottom line: if you're planning to build a web app, go with React; if you're creating a mobile app, React Native is your best bet.

This article explains how the two technologies differ and what you need to know to make an informed decision.

What is React?

React is an open-source JavaScript library primarily used to create fast and reliable user interfaces for web applications.

Where Did React Come From?

Facebook needed to optimize its increasingly complex, dynamic UI to work fast and reliably. Jordan Walke, a software engineer at Facebook, created a prototype in 2011 called FaxJS – the origin of React.

Two years after publication, React began gathering devoted supporters who appreciated its usefulness and scalability. An open-source MIT license meant React was free for personal or commercial use – and that any developer had the right to modify it as they saw fit.

Why is React So Popular?

According to the 2025 Stack Overflow Developer Survey, React is used by 44.7% of developers – making it the second most-used web framework globally. Three technical properties drive that adoption.

Speed comes from the Virtual DOM – an in-memory representation of the real DOM that's lighter and faster. React batches and optimizes updates to the DOM, resulting in significantly faster re-rendering than direct DOM manipulation. Developers also benefit from clear error prompts that surface issues live during development.

Component-based architecture lets developers build self-contained UI components that can be composed together and reused to make complex interfaces. This approach breaks UI development into smaller pieces that are easier to manage, test, and update independently.

JavaScript and HTML integration through JSX syntax – JavaScript combined with HTML/XML-like markup – makes React components easy to read, write, and reason about, and keeps rendering logic close to the markup it produces.

React Challenges

As with every technology, React had growing pains. 

At one point, its complexity and the lack of comprehensive learning materials were barriers for new developers, and new patterns were appearing faster than documentation could keep up. Today that's no longer the case – updates are announced in advance and official documentation at react.dev is comprehensive.

If you're looking for alternatives, Angular is a full framework from Google and React's most direct competition. Read our comparison of React vs. Angular to see which fits your project.

ReactJS Examples

The most visible examples of React in production are Meta's own products. 

Both the web versions of WhatsApp and Instagram were built using React. The latest Facebook revision relied heavily on React for performance when loading dynamic content simultaneously in the feed and Messenger. Other well-known organizations using React include Asana, BBC, Netflix, Twitter (now X), and Uber.

What is React Native?

React Native is an open-source JavaScript framework created by Facebook, typically used for developing cross-platform (iOS and Android) native mobile apps. Applications built with React Native have native UI components and don't suffer from the WebView limitations associated with hybrid frameworks.

Facebook recognized the growing importance of mobile and in 2015 released the React Native framework. Rather than relying on HTML rendered in a browser, React Native uses JavaScript to build apps that call native platform APIs directly – so the resulting apps look and feel native to each platform.

Traditionally, Android and iOS apps required separate codebases in two different programming languages. With React Native, developers write once in JavaScript and target both platforms, changing only the parts that invoke platform-specific native elements.

Why Use React Native?

The framework is mature and backed by Meta, with a large active community. It's used by major organizations at scale – including Walmart and Shopify. It's open-source, free to modify, and reached 4 million weekly downloads in 2025 – representing 100% year-over-year growth per the React Conf 2025 recap.

Three properties make React Native particularly practical. 

Developers who already know JavaScript or React have a notably easier time learning React Native – the component model, JSX syntax, and state management patterns transfer directly. 

One codebase for multiple platforms means sharing the vast majority of code across iOS, Android, and increasingly web, which significantly accelerates development. 

A large community of React Native developers creates accessible documentation, open-source libraries, and searchable solutions to common problems.

React Native Challenges to Consider

React Native still lacks some custom, platform-specific modules, which may mean bringing in a native developer for certain features. Navigation has historically been less smooth than native, and the animation engine has limitations compared to platform-native animations. Read the full pros and cons of React Native development.

React Native isn't the only way to build mobile apps. See our comparisons of React Native vs. Flutter and vs. NativeScript to understand where each fits.

React Native Examples

Beyond Meta's properties, some of the most widely used apps built with React Native include Coinbase, Discord, Pinterest, Shopify, and UberEats.

React vs. React Native Comparison

React and React Native are not competitors – they're JavaScript tools that serve different purposes. Which one to choose depends on what type of product you're building.

React is best when you want to build a fast and stable user interface for a website. It saves development time through reusable components and fast rendering. It is primarily used for web development and is a library – a collection of tools you integrate into your own architecture.

React Native is best when you want to create a mobile app for iOS and Android. It saves development time through pre-built native components and a codebase that's reusable across platforms. It is primarily used for mobile development and is a framework – it provides a set of rules and mechanisms to build upon.

Library vs. Framework

A library is a collection of pre-composed rules and routines that a developer can call instead of writing every line from scratch. Libraries cover common use cases and can be incorporated into frameworks. React is a library.

A framework is generally more comprehensive. It provides a set of rules and mechanisms that serve as a support structure for the entire application. React Native is a framework.

What If You Need Both Mobile and Web?

React Native Web – used by Twitter/X – allows you to run React Native components and APIs on the web by translating them to accessible HTML via React DOM. 

This approach supports server-side rendering for SEO and lets you share the majority of your codebase across iOS, Android, and web from a single React Native project.

Monterail's React and React Native Experience

Monterail builds with both technologies across different product categories. 

The Beryl bike-sharing app was built in React Native to serve hundreds of thousands of simultaneous users across UK cities – a scale that required both platform reach and native-level performance. The Seat Unique premium ticketing platform used React on the frontend throughout its 8-year partnership with Monterail, growing 7,900%+ in revenue and reaching 1M+ monthly visitors.

If you're deciding between React and React Native for a new project, or need an experienced team to build with either technology, Monterail's mobile and web development teams can help you make the right call. 

You may also want to consider working with a specialist development partner if your team doesn't yet have React or React Native expertise in-house.