React Native vs Flutter: key differences & a selection guide

React Native is written in JavaScript, one of the most popular programming languages in the world, meaning it has a vast developer base, so companies can easily find developers with relevant skills for building and maintaining React Native apps. React Native supports TypeScript, a superset of JavaScript, and in recent years this language has become the preferred choice for many developers because it adds static typing that helps reduce errors and improve code quality.

Dart, the programming language behind Flutter, is far less widespread in the developer community than JavaScript, but because of its simple syntax, it’s considered easy to learn, particularly for developers proficient in Java, Kotlin, or C#. What’s more, Dart is a strongly typed language that by default enforces type safety more strictly than TypeScript and additionally provides a null safety feature, which makes Flutter apps more reliable and crash-resistant.

React Native is designed primarily for iOS and Android, with the framework offering support for UI components, device APIs, and native functionality for these platforms by default. Additionally, developers can use dedicated libraries and tools (e.g. React Native for Web and React Native for Windows/macOS) to adapt apps for web and desktop platforms, though some mobile-specific components could require adjustments to work properly.

Flutter offers out-of-the-box functionality for the development of mobile and desktop applications and web platforms. However, to build applications for embedded systems using Flutter, developers need to rely on community-driven tooling and plugins. This broad platform support makes Flutter a versatile framework suitable for a wide range of app development projects.

React Native compiles app logic into JavaScript, which is executed by the Hermes engine (or another JavaScript engine). Through the JavaScript Interface (JSI), this code communicates directly with native modules and native UI components, enabling lower latency and smoother responsiveness. Features like Fabric and TurboModules further enhance efficiency, improving startup speed, memory usage, and overall performance.

Flutter compiles Dart code directly into native machine code. It draws the entire UI with its own rendering engine, rather than using UI components provided by the platform. This self-contained model ensures consistent rendering, smooth animations, and stable performance across devices, making Flutter particularly well-suited for graphics-intensive and highly interactive applications.

React Native uses a special layer to access and render native interface elements of mobile devices, such as buttons, fields, and images, creating a more authentic look and feel for users of each platform. However, this use of platform-specific elements can lead to interface inconsistencies across devices. The framework also offers an extensive collection of third-party UI kits that help create and reuse unique UI elements without the need to write a lot of code from scratch.

Flutter provides a rich set of pre-built customizable widgets that replace native platform components in the app’s interface, allowing developers to create visually appealing and feature-rich apps with a consistent look across multiple platforms. Flutter supports Material Design and Cupertino kits, allowing developers to easily adapt to Android and iOS design guidelines and create apps with platform-specific aesthetics.

React Native relies on standard JavaScript/TypeScript development tools, allowing developers to use popular integrated development environments (IDEs) like Visual Studio Code, WebStorm, or Atom. Its command-line interface provides commands to start new projects, run apps on emulators or physical devices, and link native modules, streamlining the development workflow. Moreover, there is an extensive ecosystem of third-party developer tools for React Native (e.g. Expo, React Native Debugger) that developers can use to simplify common tasks, accelerate the development process, and improve their productivity.

Flutter supports multiple IDEs, including Android Studio and Visual Studio Code, which gives developers flexibility in their environment choices and workflows. Flutter provides command-line tools both for the framework itself and Dart, simplifying key tasks in the development lifecycle. In addition, the framework has a dedicated suite of performance and debugging tools called DevTools that are available as part of the Flutter software development kit (SDK) and can help developers accelerate the creation and maintenance of high-quality code.

Both React Native and Flutter streamline the development process by providing comprehensive developer tools, pre-built components, and a rich ecosystem of third-party libraries, widgets, and plugins. In addition, they both have a hot reload feature that lets developers check changes in the code in real-time without reloading the app, which allows for rapid UI adjustments and faster iterations.

React Native is easy to learn for developers familiar with JavaScript and React, and its extensive documentation and large community make mastering it relatively simple. However, learning to work with native modules or platform-specific features can be challenging, as it can require the knowledge of Kotlin for Android or Swift for iOS.

Flutter’s learning curve is considered steeper compared to React Native because developers need to learn the Dart programming language, which is less common. On the other hand, Flutter offers well-developed, in-depth, and easy-to-navigate documentation and comprehensive tutorials with plenty of examples to help beginners master the framework.

React Native has a vast and mature developer community that helps maintain and improve the framework. For example, there are over 2,700 contributors on GitHub who actively submit new code, review requests for code changes, and contribute to the documentation. Moreover, React Native developers can access a multitude of tutorials, guides, events, and active discussions on various platforms where they can find solutions to most common issues.

Flutter’s community is younger but rapidly growing, actively contributing to the framework’s continuous improvement. In fact, Flutter was recognized among the top 10 open-source projects on GitHub by the number of first-time contributors in 2024. This means that many developers join the Flutter community, contributing code, creating learning resources, and building reusable libraries and packages. Such active support drives the framework’s further growth and adoption worldwide.