Developing a mobile app is an effort pouring and complex task. A lot of thinking goes into conceptualization, defining features, and forming a logical flow of the app. What is even more complex decision to make which often results in a dilemma, is the selection of an appropriate technology that suffices the need of the idea, budget, timeline, and more importantly, the post management of the App.

In the app development practice, there is no going backwards once the technology for development is chosen because each technology has it’s own settings, standards, rules, and strategies which is a distinguishing factors. Choosing the right technology or tech-stack as we say in developer’s lingo, is the prime task. The internet is filled with comparisons of all sorts between technologies and what to choose when. However, the information available are more technical than explained in a layman’s term.

React Native and Flutter are two such emerging techs that have revolutionised the way mobile apps are developed and deployed. React Native and Flutter fall under the much coveted ‘ Hybrid Technology ‘ or ‘ Cross-platform Technology ‘ category of app development services. Both React Native and Flutter have become the go to technologies for any top custom app development agency. Both the technologies are good in their own ways, so when to choose which is always the biggest question. In this blog, we have tried to simplify the comparison and tried to explain on whether to choose React Native or Flutter for your app development idea.

Table Of Contents

Brief Comparison between React Native and Flutter

Parameter REACT NATIVE FLUTTER
Language JavaScript(with JSX) Dart
UI Components Component-based(Native-UI) Widget based
Architecture JavaScript code with native UI components. Single codebase, compiles to native ARM code.
Performance Performance varies depending on UI complexity and platform, can be slower than Flutter. Generally faster and smoother due to native compilation.
Compilation Process Just-in-time (JIT) to platform-specific bytecode. Ahead-of-Time (AOT) compilation for release builds.
Debug Process Fast refresh feature for instantaneous UI updates during development. Hot reload feature for quick code changes and debugging.
Deployment process Single codebase, platform-specific app stores. Single codebase, platform-specific app stores.
Development Speed May require more time due to native modules and setup. Hot reload for faster development iterations.
App size Smaller app size, but growing with improvements. Larger app size due to C/C++ engine.
Popularity Established framework, used by Facebook, Instagram. Rising popularity, used by Google Ads, BMW.

REACT NATIVE

What is React Native?

React Native is an open-source framework developed by Facebook [ now Meta ] for building mobile apps using JavaScript and React. It allows mobile app developers to use React, a JavaScript library for building UI, create native mobile applications for iOS and Android platforms. React Native enables the development of cross-platform apps with a single code. This means that the developers now need not have to code separately for iOS and Android mobile apps. The developers would need to now write the code single time and just make the necessary platform adjustments before deploying it to iOS, Android, or any other platforms, making it a ‘ shared codebase ‘ apparently.

Evolution of React Native over the years

  • First public review of React Native at the React.Js Con. Same year, at F8 Facebook announced that React Native is open and available on GItHub.

2015

  • Facebook starts an internal hackathon project which would soon go on to become one of the most popular framework for development.

2013

  • React Native underwent significant improvements, addressing performance issues and enhancing developer experience.

2018

  • Open-source UI toolkit for React Native released.

2016

  • Facebook announced the release of React Server Components, a new way to write React components that can render on the server and stream updates to the client.

2021

  • Facebook introduced the React Native CLI, unifying the development experience.

2020

  • TypeScript support, improved styling and layout, concurrent mode, and so on.

2023

  • React Native 0.72 released with features like, Symlink support, better error handling, and other development support.

2022

Pros and Cons of React Native as a Development technology

Pros of React Native:

React is elder to Flutter. It has been in the industry before Flutter was launched hence, it enjoys a wide acceptance along a more matured and big community of developers. It has an extensive documentation, and a wide range of third-party libraries.

React Native leverages component based architecture of React which makes tasks easier for the react native developers who are already accustomed to React.

React Native uses JavaScript. If the team is already aware of the JavaScript, the transitioning is quite easy for the developers.

React Native enjoys benefits from a huge collection of libraries and tools that can be integrated to the projects, enhancing productivity and functionality.

React Native allows developers to see the effects of code change in real-time without having to restart the application. This feature is called Hot-reloading.

Cons of React Native:

React Native generally delivers native-like performance, certain scenarios, such as highly complex UI or heavy graphics, may result in performance issues.

If the frequency of communication between React Native and native layers is high, then it may impact the performance of the application as React Native relies of bridge to communicate between native layers and react native and this can be an overhead.

A person with less mobile development exposure may find the learning curve a bit steep.

React Native uses a single JavaScript thread for both UI and logic, which can lead to performance bottlenecks in certain situations.

Though being cross-platform technology, certain scenarios may invite necessity of having native language knowledge viz. Kotlin, Objective C, Swift, and so on. React native has differences when used with Android and iOS.

When to choose React Native for the mobile app development?

  • When your development team or the developer already proficient with the JavaScript and aware about the React Web Framework. Ask your development team about React Native today or connect with one of the react native app development company.
  • When you already have an existing native app and want to add cross-platform features, use React Native as React Native can perfectly blend with your existing Native application.
  • When you app requires a native feature usage but, you have a limited budget to be allocated for developing a mobile app.
  • When you have complex features in your application to be implemented.

FLUTTER

What is Flutter?

Introduced in May 2017, Flutter is an open-source UI software development toolkit created by Google for building natively compiled applications for mobile, web, and desktop from a single codebase. Similar to React Native, developers need not have to maintain multiple codes for the single application. A single code based is shared between the Apps on mobile and web. Unlike React Native, Flutter uses Dart programming language developed by google know for it’s efficiency and simplicity. Flutter provides widgets for both Material Designs [ Android ] and Cupertino [ iOS ], offering a consistent look and feel across the platforms.

Evolution of Flutter over the years

  • Release of first version Flutter 1.0, which would run on Android and iOS.

2018

  • Initial Beta release of flutter.

2015

  • Release of Flutter 3.0 which addressed the issues of MacOS and Linux Desktop support. Dart 2.17 announced simultaneously.

2022

  • Release of Flutter 2.0 which addressed the issues of limited web support, lack of third party integration, and huge filesize. Introduced desktop support, nullsafety, and integration of Google Ads in the Apps.

2021

  • Release of Flutter 3.7 which included Material 3 support and DevTools updates.

2023

Pros and Cons of Flutter as a Development technology

Pros of Flutter:

Flutter provides a wide range of customizable widgets, allowing flutter app developer to create visually appealing and consistent user interfaces. Flutter's widget-based approach offers flexibility in UI design.

Flutter compiles to native ARM code, resulting in near-native performance. Flutter's custom rendering engine and compiled nature contribute to smooth animations and faster execution.

Flutter adopts a widget-based architecture for building user interfaces. Widgets are composable and reusable, providing a consistent and structured approach to UI development.

Flutter allows developers to create a consistent design language across iOS and Android platforms. Flutter provides both Material Design (Android) and Cupertino (iOS) widgets.

Flutter is developed and maintained by Google, which provides strong backing, regular updates, and long-term support.

Cons of Flutter:

Learning Dart (the programming language used by Flutter) might be an additional challenge for developers who are not already familiar with it. The widget-based approach and Dart's syntax could contribute to a steeper learning curve.

Flutter apps can have larger file sizes compared to native apps, which might be a concern for projects with strict size limitations.

While Flutter allows access to native features, certain advanced native modules may not be as readily available as in React Native. This might require more manual intervention and native code integration.

While Flutter allows integration with native features, some complex native features may require more effort or knowledge of platform-specific languages.

Dart is not as widely used as JavaScript, which might impact the availability of developers with Dart expertise.

When to choose Flutter for the mobile app development?

  • When you prioritize a visually appealing and highly customizable user interface.
  • For applications with high-performance requirements, such as graphics-intensive or real-time scenarios.
  • When your development team is open to learning a new language (Dart) or already has experience with Dart.
  • When you aim to create a consistent design language across iOS and Android platforms.
  • When app size is not a primary concern or when other factors outweigh the potential impact of larger app sizes..

[

Get your mobile Apps developed with React Native or Flutter. Connect with experts to understand what is best for you.

Contact us

](https://www.nimblechapps.com/contactus?utm_source=Blog&utm_medium=Banner&utm_campaign=Flutter_vs_React_Native)

Comparison Flutter vs React Native : A detailed comparative study

Code Structure & Syntax

a. Flutter

Widgets create a hierarchical structure, with parent elements nesting child elements. UI is defined by declaring its desired state, rather than explicitly manipulating elements.

class MyWidget extends StatelessWidget {

 @override Widget build(BuildContext context) { 

 return Text('Hello, Flutter!'); 

 }
 }
b. React Native

UI elements are defined using a familiar HTML-like syntax, called "JSX". UI is constructed from small, reusable components. UI is defined using familiar concepts from web development.

import React from 'react';

import { Text } from 'react-native';

const MyComponent = () => { 

return(

 Hello, React Native!

 );
};

Life cycle of a component/widget

a. Flutter
  • Lifecycle management in Flutter revolves around the StatefulWidget class.
  • Key lifecycle methods include initState() for initialization, build() for UI construction, and dispose() for resource cleanup.
  • Developers have explicit control over lifecycle events, ensuring efficient resource management and predictable behavior.
  • Flutter's structured approach to lifecycle management contributes to stable and performant applications.
b. React Native
  • React Native offers lifecycle methods within class components, such as componentDidMount() and componentWillUnmount().
  • These methods enable react native develop company to perform actions during component creation, update, and removal.
  • Lifecycle methods facilitate tasks like setting up event listeners, data fetching, and cleanup operations.
  • React Native's lifecycle management ensures seamless integration with native components and efficient memory usage.

Compilation Process

a. Flutter
  • Flutter utilizes Ahead of Time (AOT) compilation to translate Dart code into native machine code ahead of runtime.
  • AOT compilation improves app startup time and performance by pre-compiling code into efficient binary executables.
  • During development, Flutter's build process compiles Dart code into native libraries for each target platform (e.g., ARM for mobile devices).
  • AOT compilation ensures that Flutter apps run smoothly and efficiently on various platforms, delivering high-performance user experiences.
b. React Native
  • React Native employs Just-In-Time (JIT) compilation, which translates JavaScript code into native instructions during runtime.
  • JIT compilation allows developers to make changes to code and see instant updates without recompiling the entire application.
  • While JIT compilation offers flexibility during development, it may lead to performance overhead in production environments.
  • React Native's JIT compilation process enables rapid development iterations but may require optimisation techniques for performance-critical applications.

Debugging Process

a. Flutter
  • Debugging in Flutter involves using the Flutter DevTools, a suite of debugging and performance analysis tools.
  • Developers can inspect widget trees, view console logs, and analyse app performance using Flutter DevTools.
  • To enable debugging, developers can run the app in debug mode by connecting a device or emulator and using IDE debug features.
  • Flutter's Hot Reload feature allows developers to make changes to code and see instant updates during debugging sessions, speeding up the debugging process.
b. React Native
  • Debugging in React Native involves using tools like React Native Debugger, Chrome Developer Tools, or the built-in React Native Developer Menu.
  • Developers can inspect UI elements, view console logs, and debug JavaScript code using these tools.
  • To enable debugging, developers can run the app in debug mode by starting the Metro bundler with debugging enabled.
  • React Native's Hot Reload feature allows developers to see instant updates to UI and code changes during debugging sessions, enhancing the development experience.

State Management

a. Flutter
  • Flutter offers various options for state management, including built-in solutions and third-party packages.
  • Flutter's built-in state management options include setState for managing local state within a widget and InheritedWidget for sharing state across the widget tree.
  • Additionally, Flutter developers often use state management libraries like Provider, Riverpod, Bloc, or MobX for more advanced state management needs.
b. React Native
  • React Native primarily relies on React's built-in state management capabilities.
  • State management in React Native is often handled using React's useState hook for local component state.
  • For more complex state management needs, React Native developers commonly use third-party libraries like Redux, MobX, or Context API.

Conclusion

Both React Native and Flutter are best in their own ways when it comes to mobile app development. With the single codebase concept getting widely accepted due to it’s efficiency and affordability, choosing between the technologies can be quite confusing. Contact the top custom app development companies and trust their experience to select the best technology that suffices your requirements.

We at Nimblechapps feel that both Flutter and React Native technologies are good for developing mobile apps. It largely will depend on the features you have, whether your idea is more native dependent or less native dependent, whether your budget permits or not, and many more. Explore in detail with your development team to understand the intricacies of both React Native and Flutter.