Flutter vs. React Native: Which one is best for App Development in 2021?

Before starting to build any mobile application, the one and only question comes into the mind is that which cross-platform app development framework is best? To choose the best app development platform, here we’re doing complete research of comparison to help you choose the most reasonable mobile cross-platform development framework for your business.

Flutter and React Native will not work if you want to develop any game app or AR-based app. In these cases, it is better to give preference to traditional app development than others. In the case of a quick application example, you need to use React Native as Flutter does not work for it. There are a variety of things you can use for both frameworks for your applications. & These frameworks include all the services such as mobile banking, social media, messengers, loyalty programs & e-commerce.

In the Flutter community, Developers are using this flutter framework to build more than 2000 applications. The number of well-spoken examples is more than 40 which is not a direct number for react native framework. Developers have taken more interest in this flutter framework over time.

Let’s compare React Native vs. Flutter using following criteria:

• Programming Language

Flutter generally uses Dart as the programming language for building mobile applications.

The benefits of Dart in mobile app development are:

1. Highly customized and customized user interface for each platform (iOS and Android); 
2. Quick changes to test and reload code;
3. An effective AOT(Ahead-of-Time) integration strategy in the development process.

React native is the traditional framework & it is based on JavaScript. As pet the statistics from Statista, about 67.8% of coders choose this language for building mobile apps.

JavaScript encoding has many benefits such as:

1. It has a gentle learning curve and a large community of developers;
2. It works on the client-server side, which means data verification can be done in the browser itself instead of sending it to the server.

• Performance

Both Flutter and React Native ensures smooth and seamless application performance. But there is a difference between these technologies. And let's get out of here! There is another useful feature of this framework such as providing time for each UI thread and GPU. But it is not limited to this skill. Let’s talk about the additional benefits of Flutter and why you should create your next app with this framework.

In these ways to improve the performance of the app are different between React Native and Flutter. React Native has a hot reload feature that shows changes to your code in real time. Another advantage of this framework is that it is not limited to a specific IDE, and you can upgrade to any text editor.

• Testing Support:

Testing has always been an important part of developing the best mobile apps. Without this process, we rarely know what bugs should be solved in the software system. To find out which testing support is better between Flutter or React Native, let's compare the testing capabilities of these two technologies in detail,

First go with Flutter, Flutter has three stages of testing to measure the performance of your application such as:

1. Widget testing is used to test multiple widgets such as text, screen layouts, and buttons;
2. Unit tests have been used to determine if one method, function, or category is correct;
3. Integration testing aims to determine whether all the tested widgets and services are working collaboratively.

As per above points, Flutter provides well-written documentation where you can find useful information about the automatic testing procedures. To bring the top-notch cross-platform application, developers use JavaScript test frameworks such as Just to test summaries. But the main difference between them is the end-of-life test. This test method helps developers determine how the app will work on a particular device from a user's perspective.

• Setup:

There are well-written documentations for Flutter and React Native have. But there is a difference between them, which we’ll discuss below:

1. The React Native Guide is written for developers who have implemented the essential setup of the Android and iOS platforms;
2. React Native uses Expo CLI and React Native CLI to set the stage for development;
3. Flutter has a flutter doctor feature that allows coders to verify the installation and maintenance of an operating system;
4. The Flutter Guide contains the required data for iOS, Android and Integrated Development Environment setups.

• Component UI and API improvement: Flutter and React Native: 

When creating a mobile platform, the native component must have. But why is it so important? The answer is that without the native component, your app will not feel native. React Native uses JavaScript bridges to communicate with the User Interfaces that will be provided. Also, Objective-C APIs and Java APIs are required for rendering on iOS and Android respectively.

In Contrast, Flutter does not rely on platform APIs as does React Native. It has its own catalog of widgets that help developers build an interactive UI, and all the necessary plugins are included in a single toolbar. Another advantage of Flutter is that it has a canvas builder that creates the same user similarity for each mobile platform. In React Native instead, the UIs of your app will look different on iOS and Android platforms.

Wrap up!

Third-party libraries are available from external resources. Sometimes it can take a lot of time to get the essentials for your app. However, the React Native community is larger than Flutter's. It means you can easily find React Native Developers who can code in JavaScript than those with Dart skills. In this way, React Native beat out Flutter.

There are additional factors that may influence your decision as to which of these technologies you are considering such as the complexity of the application and the goals for improvement. And it's up to you to decide which framework to use - Flutter or React Native.

Flutter vs. React Native, chances are that the response is more than the other options provided. Drop us a line and we will assist you in choosing the most suitable mobile app development designed for your project.