Flutter and Swift for Mobile App Development, Flutter and Swift

Performance Comparison Between Flutter and Swift for Mobile App Development

The debate between Flutter and Swift for mobile app development will continue to be a hot topic in 2023. With millions of apps available for download on various app stores, choosing the right technology for your project is crucial. While both Swift and Flutter are excellent choices for developing mobile app development, it takes time to determine the best fit for your needs.

This blog aims to provide an overview,  compare various parameters, and present real-world use cases, to assist you in making an informed decision about which technology is best for your next mobile app development project.


Let us first understand what Flutter is and why it is used.

Developed by Google in 2017, Flutter is a UI software development kit for creating appealing, natively compiled Mobile, web, and desktop applications with a single codebase. It also uses existing codes and is used by developers globally.

Now let’s understand What Swift is?

Developed by Apple in 2014 Swift is a free open-source programming language designed to be fast and expressive and serves as a replacement for C-languages

Performance Comparison Between Flutter and Swift for Mobile App Development

Here is a  performance comparison that will guide you better.

  • Development time

Flutter utilizes Hot Reload, which allows developers to see the modifications they have made in real time without the need to reboot the app.

On the other hand, Swift provides the IDE (integrated development environments). They are software applications that provide a comprehensive environment, such as coding editors, debuggers, and other tools which increases developer productivity.

  •  User interface
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Flutter provides a customizable UI kit that makes it easier for developers to create custom UI designs for Android and iOS platforms.

Swift offers native UI components that are beneficial for building complex UI elements, which are comparatively easier to manage than Flutters widgets.

  • Cross-Platform development

Flutter uses single code for iOS and Android development, ultimately allowing for faster cross-platform development.

While Swift requires a separate code base for Android and iOS apps, developers must write and maintain two distinct code bases, one for iOS and one for Android, which can be time-consuming.

  • Performance and Stability

Flutters Dart programming language uses the Just-In-Time (JIT)compilation, affecting overall app performance, specifically during the app startup.

On the contrary, Swift uses the Ahead-Of-Time (AOT) compilation, which means faster app startups and better overall performance.

Also, as mentioned earlier, Flutter’s Hot reload feature can sometimes cause instability issues during the app development, whereas Swift’s complied code can result in more stable apps.

  • App size

Flutter sometimes tends to be larger than Swift Apps, which can be a rising concern for users with limited space on their devices. It occurs because Flutter apps include a full runtime dart engine, which provides the necessary tools for executing the app’s code.

Whereas Swift only runs the code needed to run the app. However, developers can optimize their app size using code-splitting and tree-shaking techniques to remove unnecessary code and libraries.

  • Third-Party Libraries

Both Flutter and Swift provide a range of third-party libraries for app development. Regardless, Swift’s larger library ecosystem, which has developed over a longer period, includes many libraries that are not mobile-specific.

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On the contrary, Flutter’s libraries are purpose-built for mobile app development and offer a more focused selection of more accessible options to integrate and use.”

Now that we have had a comparison parameter between the two, let’s look at the real-world use cases, Apps built with Swift and Flutter.

Apps built with Flutter and Swift: Real-World Use Cases

When it comes to Mobile app development, both Swift and Flutter have their Pros and Cons. However, it is worth noting that some of the most prominent players in the market have opted for Flutter and Swift.

Companies that use Flutter

  • Google Ads
  • Alibaba
  • BMV app
  • Realtor.com

Companies that use Swift

  • Uber
  • Lyft
  • Trello
  • Airbnb
  • LinkedIn

Flutter vs. Swift: Which is a better choice?

While it is an ongoing battle between Flutter vs Swift, Flutter might be more suitable for developing MVPs(minimal viable products)or prototypes because of its faster development time and cross-platform capabilities.

On the contrary, Swift might be ideal for building complex applications with native UI elements or apps that require high -performance and stability.

For better suitability, you should consider factors such as development time, user Interface, Cross Platform Development, Performance, and strength. Eventually, the choice between the two depends on the specific requirements of your Project.


In conclusion, both Flutter and Swift are ideal choices for mobile app development. While Flutter is known for its fast development and cross-platform capabilities, Swift’s native UI elements make it an ideal choice for building complicated applications.

Overall you can make an informed decision about which technology to use depending on your requirements and the goals of your Project. With the mobile app development industry continually evolving, You can Hire Flutter developers who can use powerful tools to create high-quality, responsive, and innovative mobile applications.

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Read Next:

 The Power of Flutter for Developing Video Calling Apps

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