Last Updated: February 19, 2024
React Native vs Swift
Published On: May 25, 2023

Since the iPhone’s first launch in 2007, the number has reached around a billion iPhone users till this date. The market stretch has expanded for iOS users and gradually giving tough competition to Android users. The increased number of users has skyrocketed app usage and the need for iOS app development services.

When looking for iOS app development services, you come across a plethora of alternatives.

There are two language choices for creating apps for iOS users: Objective-C and Swift. Swift is a clear winner because it is 2.6 times quicker than Objective-C, officially stated on Apple’s site. There are several options for the framework part, and this article discusses React Native and Swift as two of them.

All of this debate between React-Native Vs. Swift brings up the age-old topic of cross-platform versus native app development. Swift is the iOS native app development language with SwiftUI as the framework, whereas React Native is a cross-platform framework.

This blog is for anyone who needs assistance selectingWhich framework to choose while getting iOS app development?”. And

For those who have already chosen “which platform to go with,” the knowledge can help them affirm their choice.

What is React Native?

A free, open-source Native API mobile developer library for JavaScript. In essence, React Native is built on React by (Facebook) Meta and community.

React Native, built from native app components, allows you to construct native mobile applications. React serves as the basic concept for React Native. As a result, the elements are different, but the syntax and procedure remain the same.

It is excellent for apps since it delivers a seamless user interface and requires much less development time. Natively generated mobile apps for iOS and Android are user-friendly and interactive.

React Native offers cross-platform development, i.e., just one code is written for an application to run on both the iOS and Android operating systems.

Meta, Instagram, Soundcloud, and Walmart are some of the leading applications developed with React Native.

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Advantages of React Native

  • Time efficiency

Some aspects, such as code reuse and iteration, are essential when creating cross-platform software. Different codes in certain circumstances could be advantageous, such as when you want to integrate extra iOS and Android components. However, this significantly shortens the time spent developing, making it time-efficient.

  • Strong community supports 

This platform has a lot of React Native developers who are actively using it. Finding resources and assistance is made simpler by it. Etc.

  • Rich library support

Swift only contains 3800 packages, compared to about 33,000 libraries and packages for React Native. The actual numbers demonstrate that React Native has a significant library advantage.

  • Hot reload feature

Using the hot reload capability, the developer can insert new source code into the running app., drastically cutting down on development time without requiring the requirement to produce new source code. When discussing React Native, this is where agility is relevant.

  • Gateway to nativeness

Using all the Native components and native APIs within a cross-platform app with Javascript is a good bargain. The code reusability and code iteration features enhance its efficiency, reducing the need to code for different platforms repeatedly.

Disadvantages of React Native

  • Performance

Some developers experience debugging and compatibility problems. There is a firm reliance on third-party libraries for complicated and intensive applications.

  • Longer testing process

Due to a single source of code, React Native allows for speedier app development than Swift; nevertheless, testing requires more time. When testing, React Native apps require more work and accuracy.

When Should You Use React Native?

The USP of React Native is cross-platform. “Write once, run everywhere” philosophy. You can use the same codebase in iOS and Android. It is hassle-free if you want your app to run on both platforms with code reusability features. It gives a near-to-authentic native feel and experience.

React Native is 33% faster than Swift when comparing the developing time for both platforms.

What is Swift?

An open-source programming language developed by Apple. Swift is a multi-paradigm and intuitive programming language. It came to light as an alternative to “Objective-C.” However, it rapidly gained accolades and became a developer favorite. Swift works best for creating iOS,tvOS, and other Apple products.

With a concise and expressive syntax, Swift is compelling. Its intuitive interface makes it even easier to learn. It has been designed after much research, which enables it to support many international languages and emojis. One of the USPs of Swift is that it is less error-prone. “Named parameter” is a feature of Swift that makes reading and maintaining APIs easier, which it took from Objective-C.

Airbnb, Twitter, Slack, Lyft, and Whatsapp are some of the leading apps developed with Swift.

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Advantages of Swift

  • Speed and Scalability

Swift is synonymous with Speed. The official website itself claims that it runs your program lightning fast. A successor to C and Objective-C, Swift has all the features of C and Objective -C with Speed as an attribute. As fast as 2.6 times than its predecessor.

Scalability is your friend when using Swift. Given the easy coding syntaxes and features like named parameters which it took from Objective C, it is easy to scale your app in Swift. Due to these features, it is loved by developers.

  • Memory management

Automatic Reference Counting (ARC) is a feature of Swift that uses a garbage collector function. Apps can operate at their peak performance thanks to ARC, which gathers and eliminates recurring instances. 

  • Readability

One of the USPs of Swift is that it is readable and easy to understand. Even when designing, the makers omitted semicolons, making it simpler and straightforward for developers.

  • Security

Security and Swift get along very well. Swift leverages the value types like arrays and others. 

The “Copy-On-Write” behavior (COW) is a feature of many Swift Value Types, allowing multiple variables to point to the same memory address so long as no changes are made to the contents of that location. No data alterations are possible thanks to COW, increasing security.

  • ABI stability

With the release of Swift 5, ABI (Application Binary Interface) stability was included, which resolved a significant problem. In the previous versions, it was absent, due to which some features used to crash. This is avoided via ABI stability, which guarantees compatibility with all languages.

  • User experience

Because Swift programs are lightweight, they install more quickly and use less device memory. Since it is a native iOS development, it gives all the needed features. Apps running on Swift will look and function better as a result. Performance is what stands out in Swift’s growth in the market.

  • Xcode

Xcode is an IDE that helps in creating excellent apps. Swift is the programming language used to access Xcode for all Apple platforms. Swift Playgrounds within Xcode is one such feature that facilitates learning Swift in an easy playful manner.

Disadvantages of Swift

  • Compatibility Challenges

Swift’s lack of backward compatibility is a big obstacle. Older versions of Swift cannot be used with the more recent versions. It is impossible to upgrade a project made in a recent version. Code rewriting for newer versions becomes a necessity. 

  • Kind of a “made for each other” scenario

Swift is a fast, clean, and crisp programming language. But it can be used on native platforms for native devices. This makes its use limited to iOS platforms. However, it is compatible with Windows and Linux as well. 

  • Small Community and Limited Programmers

Moreover, despite its fast-paced growth, the Swift open-source community is small and more substantial than other programming languages. So, the resources from Swift experts are yet to be upgraded. The need for upgraded resources becomes a challenge for new developers searching for expert information or guidance. Finding a Swift developer can be arduous, given the limited number of good developers.

When Should You Use Swift?

When you have to include a complex and interactive interface with in-app payment options, if you need good memory management, then Swift is the right choice. Apple relies on it, making it the future language for Apple platforms. So if you have native iOS development needs, it is a good option.

React Native Vs. Swift – Why Should We Compare Them?

Mobile apps are evolving beyond being merely a problem-solving tool. It has become a vital tool in lifestyle and building relationships. On average, we check our mobile phones 150 times a day. Given that, having an app is essential.

Did you know that – 2,00,000 million people suffer from fear of not using their mobile phone, or mobile addiction is called – NOMOPHOBIA

Creating the app might be pretty expensive regarding cutting-edge cross-platform mobile development. Cutting expenses without sacrificing quality could be very beneficial for businesses. 

Writing separate code for iOS and Android is the most dependable and sure way to create a mobile application for each platform. From a business lens, it does not appear to be an effective strategy to approach. Therefore emerges cross-platform, removing the need to write code repeatedly for both systems.

However, optimization may have drawbacks that are difficult to accept. Given this, it is accurate to compare the potential of Swift and React Native.

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React Native vs. Swift: A Table of Differences



React Native

Developed by Apple Meta and Community
User interface Development iOS Native Cross- Platform, Native components supported by APIs
Language Alternative to Objective – C  Javascript Framework and Javascript Extension
App development Slow Fast
How old are you? born in 2014 Born in 20015 but has all the features of React, the legacy of javascript
Cost of development Higher Low, as compared to Swift
Performance Faster and better performance for complex applications Native-like experience and feel the quicker response time
Community Small Apple-backed community Significant community backing, cross-platform community backing


Detailed Comparison: Swift vs. React Native

React Native vs. Swift: Performance

Some factors responsible for the performance are GPU speed, CPU utilization, and memory usage.

React Native performs better than Swift regarding memory management and GPU speed, while Swift outperforms React Native in CPU consumption.

As a result, React Native outperforms Swift in terms of performance.

Swift vs. React Native: User Interface

Swift is Apple’s proprietary native iOS development, which is a perfect fit for all Apple platforms. So native development in Swift calls for honing all your skills like design, UX elements, and others. Hiring iOS developers for Swift apps to increase time and cost efficiency is a wise choice. 

React Native implements JavaScript and internal native API components to run native elements. The UI is identical to the Native but simpler to code. Thanks to JavaScript web development, React has no problem adjusting to different screen sizes.

React Native vs. Swift: Stability

For cross-platform frameworks, React Native dominates the market. Utilizing internal APIs and frameworks to run apps efficiently is React Native’s primary goal. This implies that the development process may involve several layers, making the program somewhat unstable.

For building Native applications, Swift has access to all of the platform’s features. In addition, Swift defeats React Native in the Swift vs. React Native comparison when handling challenging tasks and visual effects. Hence, we can see increased stability in Swift. 

React Native Vs. Swift: Speed of Coding

Swift provides an increased coding speed as a clean and concise syntax. More so, the makers made it more convenient by removing the need for semicolons usage. The “Copy-on-Write” saves much time and memory usage. 

React Native is a Javascript framework and a leading cross-platform framework. With expertise, the speed of coding increases. One factor to remember is that building a multi-platform application is convenient in React Native. You don’t need to build an app twice while working on a cross-platform framework. 

Swift vs. React Native: Learning Curve

A beforehand knowledge of Javascript will help ease your learning curve for React. Whereas in Swift, you need to know Objective-C and then learn Swift. There are loads of documentation for both platforms. Even Apple has a “Swift playground” to ease the learning process for Swift. The syntax structure of Swift was made so that even beginners could opt for it. 

React Native vs. Swift: Platform Maturity

Both platforms are relatively young if we talk about maturity. But since both come from a lineage of long-known languages like Javascript for React Native and Objective-C for Swift. Both have a history. With each version released, both communities recognize more robustness.

React Native, despite being a native app builder, is not a fully native language for iOS app development, unlike Swift. Between iOS platforms and code, React Native serves as a bridge. Swift works admirably when it comes to demanding computational and graphic tasks.

Swift vs. React Native: Developer Cost

Hiring a React Native developer is relatively affordable when creating an iOS app. Even so, there won’t be much difference if you hire the same engineer for Swift and React Native. Later, when you recruit a development team, they become more affordable or cost-effective.

React Native is both cost-effective and time-efficient.

Swift vs. React Native

React Native vs. Swift: Developer’s Availability

Javascript, a well-known and most learned language, has understandably more significant numbers of developer inclination. 65% of users, according to a Stack Overflow survey, would choose JavaScript as their language of choice.

Swift has a lesser number, majorly due to the limitation of being a native development dedicated iOS language and hesitation of Apple proprietary and can’t be used on other platforms. Swift barely makes up to the top twenty most used languages survey.

Because of this, there are numerous JavaScript programmers available. However, there are much fewer Swift programmers. Building a team of JavaScript programmers is a lot simpler.

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React Native vs. Swift: Community Support and Documentation

React Native is an open-source Javascript-based platform supported by numerous expert developers worldwide, although Apple experts continue to embrace Swift. However, public platforms offer technical assistance to Swift developers.

React Native provides comprehensive, clear, and accurate documentation, and Swift’s documentation is consistently updated, both of which are beneficial.

Final Words

An application is a bridge that connects technology with the human lifestyle. Today think of any need, and you’ll find an application for it, as mundane and vital as an alarm clock. The mobile application has replaced the physical alarm clock and proved its utility.

It is your decision on which platform you want your iOS alarm clock application!

React Native, with its cross-platform feature, provides reduced development time, cost-effectiveness, and easy learning. A developer with prior knowledge of Javascript is a great benefit when working on React Native applications. When stuck, The large community provides all the resources and a helping hand.

Swift has better memory management, making it a convenient pick for those eyeing storage. Better UI is another cherry to be picked. Swift gives better stability when compared to React Native apps. Swift undeniably provides the best iOS native development experience.  

It depends on your project requirement; Whatsapp, you see, implements Swift, whereas Facebook uses React Native—absolutely a “requirement-basis” pick.


Flutter is simple to learn, although it's primarily used to create Android apps. React Native is a better option for cross-platform development because thousands of developers are proficient in JavaScript. Conversely, Swift enables programmers to construct native iOS applications, which can be more expensive but offer a better user experience.

Yes, React Native can be used along with Swift. You can follow these steps and open the already-made React Native App project in Xcode. If it is necessary, you can create modules in Swift. Then expose the modules in the React Native / Objective-C bridge. Call the react native modules, and compile them in Xcode.

Replace that might not be an option. Since both platforms have their pros, they are good to use. So React Native can be used with Swift but not replaced. Apple is looking forward to Swift as its future however the language has many attributes to it to be replaced.
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Jayanti Katariya

Jayanti Katariya is the CEO of Moon Technolabs, a fast-growing IT solutions provider, with 18+ years of experience in the industry. Passionate about developing creative apps from a young age, he pursued an engineering degree to further this interest. Under his leadership, Moon Technolabs has helped numerous brands establish their online presence and he has also launched an invoicing software that assists businesses to streamline their financial operations.

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