Jan 20, 2021

about 5 min read

Flutter vs. React Native: Ideal Hybrid App Frameworks 2021

Flutter vs React Native 2021 - Which one is better for your Hybrid app?

Cross-platform mobile apps are picking up fame. Flutter vs React Native 2021 is the fight between the two leading business sector players. At Golden Owl, we'll construct business applications for clients utilizing the methodology that best fits their technical needs – be it Native, Flutter, or React Native. Both React Native by Facebook and Google Flutter is making a buzz. On the off chance that you need to choose between Flutter or React Native in 2021 - which one would it be wiser for you to pick?

There is no correct response to this inquiry. The answer relies upon your business needs case by case. Both React Native and Flutter are ground-breaking competitors with their own arrangement of advantages and disadvantages.

What are Flutter and React Native?

By tradition, it is a must to construct native applications. That implies two distinct iOS and Android variants for only one application. Yet, the time of hybrid applications has emerged recently and almost made the old method redundant. This table underneath indicates the fundamental correlation between 2 distinctive ways to assemble hybrid applications: Flutter and React Native. You can see that Google Flutter is somewhat new and trendy compared to the mature Facebook React Native. They are utilizing distinctive programming languages, and both are well known among engineers.

Flutter vs React Native 2021 in a Nutshell


To further examine the 2 adversaries and reach the conclusion of which one is a superior decision, we should score them both on a few essential criteria: 

  • Programming language
  • Technical architecture
  • UI components and development API
  • Community support
  • Testing support
  • Automation support
  • Programming language

React Native uses JavaScript, the most well-known language with regards to web development. JS engineers are generally acquainted with the React framework, which bears numerous resemblances to React Native. It makes the apparatus simpler to master and consolidate, especially when an organization has had a web design team.

Flutter depends on Dart, a programming language made by Google, and is barely in use elsewhere. Dart looks like both JavaScript and Java, especially in syntax, making it simple to learn for developers who have some knowledge in JS, just as C# and other object-oriented languages.

  • Technical architecture

React Native — Flux, depends on a JavaScript extension to run. Generally, you will code just like with Native apps. With React Native applications, your JS code is integrated into native code during runtime utilizing Facebook's Flux design. This connection between the native modules with JavaScript code during runtime can make the application slower in some cases, even though the framework's speed is by and large adequate regardless of its architecture.

Flutter — Skia, This toolbox utilizes UI systems like Cupertino and Material Design, alongside the Skia C++ engine, with all the fundamental protocols and channels. The broad scope of offered functionalities in Flutter ordinarily eliminates web designers' need to look for its alternatives. To put it plainly, Google Flutter has everything required for application construction in the Flutter system itself.

  • UI Elements and Development API

React Native — Less Elements

The React Native system's primary purpose is to give UI delivering and device access APIs. To get to the vast majority of the native modules, React Native depends on third-party libraries. React Native is excessively reliant on outsider libraries. They have a full rundown of developing elements and the official APIs.

Flutter — Rich in Elements

Flutter is packaged with UI rendering elements, device API access, navigation, testing, stateful management, and many libraries. This rich arrangement of elements eliminates the need to utilize outsider libraries. If you choose to go with Flutter, you will have everything required for creating mobile applications. Flutter additionally has gadgets for Material Design and Cupertino that permit engineers to render the UI on either iOS or Android appstores handily.

  • Community Support

React Native - already the best

Regarding support groups, React Native is the supreme victor. This structure has been around for much longer than Google Flutter, and the network of expert knowledge sharing is more broad, dynamic, and for the most part, rousing. React Native was dispatched in 2015 and has picked up in prevalence from that point forward. There is a community of React Native engineers on GitHub and bunches of meetups and gatherings worldwide.

Flutter - new and growing

Flutter might be falling behind until further notice. Still, considering its fast development, it is forecasted to keep up with the collaboration and commitment degree that the React people have had. Flutter has been around for some time, yet it picked up a ton of notice when Google talked about it in the Google I/O meeting in 2017. The Flutter crowd is developing quickly nowadays. Many meetups and gatherings are occurring online. In short, the Flutter community is growing fast; yet, there are still insufficient forums for web designers to turn to when tackling fundamental issues.

  • Testing support

React Native - Third-party tools

React Native is a JavaScript framework, and there are a couple of unit level testing frameworks accessible in JavaScript. Gadgets like Jest can be utilized for preview testing. Be that as it may, there are no official materials from React Native with regards to deployment or UI level testing. There are outsider means like Appium and Detox that can be utilized for testing React Native applications; however, they are not officially recognized.

Flutter - Built-in feature

Flutter offers a rich resource of testing functions to test applications at the unit, widget, and deployment level. Flutter has extraordinary documentation on testing Flutter applications. Flutter likewise has a cool gadget testing function where we can make widget tests to test the UI and run them at unit tests' speed.

  • Automation support

React Native - Xcode / fastlane

The React Native primary documentation doesn't have any automatic steps to deploy the iOS applications to AppStore. Nonetheless, it gives a manual cycle to sending the application from Xcode. We can generally utilize outsider tools like Fastlane to send the two iOS and Android React native applications. This implies that React Native has to depend on outsider libraries for construction and delivery automation.

Flutter - Command line tools

Shudder has a stable command-line interface. We can duplicate the application by utilizing the command line devices and adhering to Flutter documentation guidelines for building and delivering Android and iOS applications. On top of this, Google Flutter has formally archived the deploying process with Fastlane, too.

Flutter vs React Native 2021: Which to Choose?

Both Flutter and React Native are staggering systems that can help you construct a hybrid application much quicker and more straightforward than most other methods.

In contrast, to React Native, Flutter loses scores to JavaScript's commonality since Flutter utilizes Dart—a programming language seldom used by web designers. Consequently, if you currently have a group of experienced JS engineers, React Native may be a better decision.

Simultaneously, Flutter offers various adaptable widgets that can be utilized both for Android and iOS. It eliminates the need to invest significant energy into styling separate components of your application's UI. For the most part, Flutter performs better and quicker as it is gathered to native libraries. Go with this choice when you need striking and profoundly custom-fitted plans or, on the other hand, on the off chance that you are now acquainted with Dart rather than JavaScript.

If you want more information on building your hybrid app with React Native or Flutter, you can contact us for more details

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