Which Is The Best Mobile App Framework: Flutter vs. React Native?

By Harikrishna Kundariya Mobile, React June 22, 2019 10 min read 796 Views

The Framework is an essential requirement in mobile app development. It is a formal structure that helps in building software. Selecting a framework is an important factor to kick start your application development. This blog provides a feature-based comparison of Flutter vs React Native.

There were only specific frameworks before the launch of new and modern frameworks. And, that is why developers had to focus only on building native applications. After the launch of new frameworks, developers have many options to explore.

Before Building an Application, Developers Have to Consider the Two Major Factors


The budget is the fuel for any business. While planning to craft an application, Mobile App Budgeting becomes a major constraint. Building cross-platform application is affordable as compared to developing a separate OS-specific application.


Building Cross-platform apps has its benefits as it is faster and pocket-friendly. On the contrary, it is difficult to execute complex logic or hardware integration in it.

1. Type of Mobile App Development Framework

Mobile App Development is booming in the industry and with that, there is an upsurge in the demand for app development.

Building an app requires frameworks which is an essential requirement of it. A comparison of two major frameworks Flutter vs React Native can seal the deal for you.

Also, it requires a team to contribute their expertise in app development. For a team, you can also reach out to the leading Mobile App Development Company of India & the USA for understanding in detail the Development, pros, and cons of it.

There are two types of Mobile App Development Frameworks:

  • Native Mobile App Development Framework
  • Cross-Platform App Development Framework

1.1 Native Mobile App Development Framework

Mobile companies build native Mobile App Development Framework. In the case of Android, a developer uses the Android SDK with Android Studio.

Whereas, the iOS developer uses iOS SDK with Xcode as IDE. The programming languages are Swift or Objective-C for iOS and Java or Kotlin for Android.

Native apps are fast and costly, which only a well-established business can afford. Hiring a separate team, deployment, and maintenance of the application are a few costs.

1.2 Cross-Platform App Development Framework

The cross-platform app development doesn’t take much time to develop. Also, it is affordable.

There are many frameworks that are as follows:

  • Ionic
  • React Native
  • Xamarin
  • Flutter

1.2.1 Ionic

Ionic is a cross-platform app development framework that can develop apps for both the platform. It can craft an application for more than one mobile platform. Building Ionic apps requires HTML, CSS, and Angular as technologies.

1.2.2 React Native

React Native is a popular framework for building cross-platform applications. Facebook is the sole owner of creating such a framework that offers ample benefits to its users.

React Native is a blend of ReactJS and JavaScript. Native Hybrid apps make use of web technologies to craft an app while, React Native makes use of its own components. Concept Of React uses actual Android or iOS components while building a user interface.

XML-like language, aka Javascript-XML, is important for building a user interface. Also, the React Native is easy to understand.

1.2.3 Xamarin

Xamarin is a cross-platform that is set out to make it open-source. The Framework is based on C# that takes a unique approach to craft an application.

The advantage of Xamarin is that it compiles code for different platforms. Building an app using Xamarin could give you a native application experience. Also, developers can re-use the C# code and share vital codes that help in building the application.

1.2.4 Flutter

Flutter, an open-source user interface SDK launched by Google in 2015. It is fully-compiled to native code.

Which language does Flutter use? And, the answer to the question is Dart, a programming language created by Google and is very rarely used. It is easy to understand for Java developers because it supports innovative concepts.

The Flutter can provide native feel. And, they can make their users feel by using its graphic engine known as Skia. It is so convenient that using Flutter for app development saves a lot of time and money.

You can also check How much does it cost to make an application for a better idea to build. This will help you to understand what should be the budget and what it requires to develop an application.

2. Exploring the Pros & Cons – Flutter vs React Native

Pros & Cons Of React Native

Pros and Cons of React Native


Hot Reloading:

React Native develops mobile applications faster and quicker. It has an additional but effective feature, which is known as “Hot Reloading.”

This feature quickly updates the changes and provides you the result on your mobile. So, in the race of Flutter vs React Native, this aspect goes in the favor of React Native.


You need not have to hire an additional developer for building applications. The experience developers can build a project using this Framework.

Ready-Made Components:

React Native has ready-made components that a developer can use while crafting an app. Also, it saves a lot of time and money.

Native App-like performance:

It builds an application faster and also provides the native app-like feel. That is the reason why building PWA with React Native can be a sure shot reality.


Performance Problem:

React Native is a framework that provides performance like native-apps. Simple Applications would not attract any problems.

The problems arise when the application requires advanced functionalities. However, there are many ways to Optimize React Native Performance. You can focus on that aspect to overcome this limitation.

Management issue:

React Native might face memory management issues as it has a Javascript background. So, when you’re doing a comparison of Flutter vs React Native, keep this is mind.

Coding issue:

There are many devices for which coding needs to be done. And, with this, there can be edge cases that don’t provide effective results.

Pros & Cons Of Flutter

Advantages and Disadvantages of Flutter


Faster and Quicker:

The Development of a mobile application using Flutter is faster and quicker. A developer can develop both iOS and Android at the same time. According to German developers, the highest frames per second is 120 in Flutter.

One Code For All Platforms:

There is no need to write separate code for building cross-platform apps. You can also Add The Firebase Services To Flutter App.


It requires one-time testing because there is only one codebase. Flutter is favorite for the QA team because the app built using Flutter requires less testing time.

MVP friendly:

Flutter is a preferable option for showcasing MVP of your project to the stakeholders. It creates attractive MVP, which includes the details of the project that could give an idea to the investors about the project.



A Flutter developer would not be able to reap the benefits of libraries. As there is no library fully supporting the Flutter. It is not supported by the website browser and is only made to build mobile applications.


We cannot predict that when the parent company lifts the support from Flutter as it is new in the market. The Flutter needs to have new improvements and update itself regularly.


The performance of the application built using Flutter is slower as compared to a native application. Native applications give better performance as they are only built for a specific operating system.


Coding becomes difficult as it has to consider numerous devices while developing an application.

3. Which Is Better? Flutter vs React Native

Flutter and React Native are competing to prove their app developing strategy. They are the host of cross-platform app development.

In 2020, it will be exciting to watch which Framework wins the competition of becoming the developer’s favorite Framework.

Well, let’s look into similarities and differences between Flutter and React Native. This will help in clearing the picture of both frameworks.

Flutter Vs. React Native

3.1 Similarities 


Both the frameworks are open-source, and that attracts a lot of benefits which are as follows: 

  • Saves a lot of time and money
  • Access to innovation
  • Easily Downloadable
  • Easily customizable


Both frameworks have a growing community of developers who are supporting them and helping to execute the project widely.


The benefit of cross-platform helps a developer to build applications for Android and iOS. It benefits the app owner, who is new in the market and wants to outreach the audience. Also, it saves a lot of time & money.

Hot Reload

The hot reload is an extraordinary feature that enhances both the frameworks. It instantly loads the page and quickly shows the result.

Read also: React Native or Xamarin : Which Is The Better Framework?

3.2 Differences 

User Interface Building Block

  • Building a mobile application requires tailor-made or third-party components that React Native uses while developing it.
  • Flutter effectively uses proprietary widgets for Cupertino or Material Design components.


  • Flutter wins the competition against React Native in terms of performance. It is fast and easily accessible.
  • The Flutter doesn’t have a Javascript bridge, which is a secret recipe for being a faster Framework.
  • Flutter is proven to be a high performing framework as it loads 60 frames per second.
  • It provides long-lasting performance by compiling it with ARM code for both the platform. i.e., Android and iOS


  • Javascript is an older language that makes it the best language used for Development.
  • Dart is getting noticed because of its simplicity in helping developers to learn and adapt to the functionalities quickly.


  • Documenting is a complex process. Flutter organizes the documents very well for the developers. It eases their life by making it available for them.
  • React Native, being a senior framework is highly unorganized and has extensive documentation.


  • React Native gains support for IDEs and tools.
  • Flutter has to struggle a lot in reaching that position wherein they get all the access of tools.

The time required for Development

  • React Native is a quick app development framework than Flutter.

Industry Adoption

  • Industries accept those platforms which have a wide range of benefits. And, Flutter, being new in the market, would be not a preferable option.
  • React Native has a stronghold over cross-platform app development. It has successfully created numerous applications.

Configuration Setup

  • Flutter adopts a straightforward process for setting up, which is highly preferable than React Native.
  • Automatically detect system glitches, and non-performance feature is present in newly advanced Flutter.

Lifecycle Management

  • App handling and app optimization is an important work that is proven by React Native.
  • Flutter can work with widget inheritance.

4. Flutter vs React Native – Summary

It is difficult to determine the best app development framework out of the two very feature-rich frameworks. This becomes a difficult question to answer as to which is the best in the industry.

Both have their pros and cons that are beneficial for the developers. Otherwise, an app owner can go to any of the two frameworks and reap the benefits of it. Flutter is new in the app development market but has quite rich functionality, which is vital for app development.

A flutter is a good option for the one who wants to learn from scratch as the Framework is new in the market. Also, a great option to build an application that provides a native-like ecosystem.

React Native could be a better choice if you want to explore the benefits of the senior Framework.


 Flutter is seen to be the future of mobile app development, while React Native will always stay on the top because it gets support from the developer and industry across the globe.

Also, we cannot underestimate the Flutter because it has strongly entered the cross-app mobile app development industry. Let’s watch the newbie framework growing and the senior one contributing in the mobile app industry.

Disclaimer: We at eSparkBiz Technologies have created this blog with all the consideration and utmost care. We always strive for excellence in each of our blog posts and for that purpose, we ensure that all the information written in the blog is complete, correct, comprehensible, accurate and up-to-date. However, we can’t always guarantee that the information written in the blog correct, accurate or up-to-date. Therefore, we always advise our valuable readers not to take any kind of decisions based on the information as well as the views shared by our authors. The readers should always conduct an in-depth research before making the final decision. In addition to these, all the logos, 3rd part trademarks and screenshots of websites & mobile apps are the property of the individual owners. We’re not associated with any of them.

Harikrishna Kundariya

Harikrishna Kundariya

Harikrishna Kundariya, a marketer, developer, app lover, technology savvy, designer, co-founder, Director of eSparkBiz @Mobile App Development Company where you can Hire Mobile App Developer. His 8+ experience enables him to provide digital solutions to new start-ups based on app development.


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