React Native or Swift: How Capable Are These Frameworks For Your Next Project?

Manish Jain
Manish Jain, Co-Founder & Managing Director at Konstant Infosolutions
Published on Feb 07, 2020 in Cross Platform Developers Resources


Why should we differentiate Swift and React Native? Is there anything in similar? Know the features that distinguish both app development frameworks here!

What is this article about:With this article, we hope to clarify some critical points of difference between Swift and React Native based on key factors like performance, coding speed, size of the application, debug and testing experience, integration with CI/CD tools and many more.


Similarities in Swift and React Native

Both application development platforms can be used to create native mobile apps. Moreover, both these tools can speed up the coding. Both React Native and Swift can be used to create intuitive and responsive interfaces that are stylish, interactive, and effective.


Why is a comparison between React Native and Swift necessary?

We do not build a 'mobile web app' – can be essentially perceived as a web app wrapped in a native container. Compiling the JavaScript (JS) code to a mobile app similar to an iOS app built with Objective-C or Android using Java, React Native (RN) has the dual advantage of enabling the development of both native as well as hybrid technology. It can enable the development of both big as well as small projects. A clear comparison between React Native (RN) and Swift can disclose the actual benefits.


Let’s Start With React Native

  • React Native comes with Random access Module Building, Native Parallel Fetching, Inline Require, RAM bundles and some more that are inbuilt in the network.
  • This framework often comes with some challenges that have to be fought with while coding like Enabling Push notifications in application, frequent crashes, out of memory problems and overhead caused due to injecting the JavaScript bundle into JavaScriptCore (the VM used by React Native both on iOS and Android) and instantiating native modules and view managers.
  • The time required to build a react native app is less than the time required to build a Swift App.
  • React Native allows the development of the native mobile applications for iOS as well as the Android platforms with the help of a single JavaScript codebase. It makes use of the React.js library for the creation of an accurate native mobile application.
  • React Native helps in the compilation of the JavaScript codebase to a mobile application quite similar to an iOS application built with Objective C or Android One using Java.
  • This framework features hot or instant reloading where development changes are instantly reflected on the underlying interface which has been edited during runtime. This preserves all of the states particularly at the time when the developers are working on the UI.
  • The mobile apps developed with React Native tend to allocate more memory as compared to ones developed with Swift.
  • Cost Mobile app development using the React Native framework is certainly cost-effective and a short development cycle as well.
  • React Native is comparatively much easier to learn and convenient to debug thereby making the training part for the companies much easier as well.
  • React Native, on the other hand, uses JavaScript as a power behind the scene and leverages the internal APIs to run native elements. Considering that, the user interface is indistinguishable with the native one, yet easier to code.
  • React Native apps can be used and displayed across screens of all sizes due to JavaScript.
  • React Native utilizes CPU better but dealing with graphical effects may be more troublesome for the framework. It also enables developers to embed the native code into the app, delivering the code chimera using different tools and assets to deal with different tasks.

Let’s Talk About Swift

  • Swift is a native iOS programming language or framework that enables building a mobile app from scratch. This is in contrast to React Native, where the same code is applicable across platforms – Android or iOS.
  • Swift integrates and leverages all the iOS UX principles.
  • The speed of coding and CPU performance is slightly on a lower scale as compared to React Native.
  • Swift incorporates the use of Automatic Reference Counting (ARC) improvements that help reduce the time the developer could spend in avoiding frequent memory leaks in the app.
  • It I easy to understand, has interactive code and is easy to learn.
  • Swift is designed for ensuring safety.
  • Swift provides safe memory management, type interference, optional and simple but has strict inheritance rules.
  • Swift can be collected only into dynamic frameworks. It can inherit Cocoa APIs as it supports Objective C files, within the same project.

Compendium: Resilience of Coding: React Native vs Swift

Swift is backed by Apple and React Native is backed by Facebook. It is designed as a step ahead than Objective C, following all OOPS programming concepts and backing up most of the iPhone applications.

React Native is not producing native applications. But can be used to write code that works across platforms. It works wonders by leveraging the internal API's and libraries to make the app work. This is more about adding a middle-man between the code and the platform.

Swift, on the other hand, produces a native app that may leverage all the platform's possibilities. This framework performs better with graphic effects and computational-heavy tasks. Although Swift can create highly performant applications, it is not helpful with code optimization.

React Native is backed by Javascript that makes coding and debugging easy. It further helps in the compilation of the JavaScript codebase to a mobile application similar to an iOS application that is built with Java (for Android) or Objective C/Swift (for iOS). These uplifts React Native app development and cults all comparisons between React Native vs. Swift.

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About the author
Manish JainCo-Founder & Managing Director at Konstant Infosolutions

Manish Jain is the co-founder and Managing Director of Konstant Infosolutions, a mobile app development company based out in India and the USA. Being a technology enthusiast with 15+ experience, his strategic advice and guidance have provided a compe...

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