The Pros and Cons of Building an iOS App with Swift


Swift has been thriving in iOS app development since its inception in 2014. The Language features many functionalities and offers sophisticated support in iPhone app development services.

And that is why Swift is rapidly emerging as the most sought-after app development language for iOS and other Apple platforms. Predictions state that this would be the sole iOS programming language in the future, obsoleting Objective-C.

And considering this prediction, it is good to choose Swift for your iOS app development. If you select Swift now, you won’t have any hassle scaling and expanding your application in the future.

But before you hire an iOS Swift Developer, you should be aware of these several pros and cons the Language has. 


Pros of Swift in iPhone app development

Readable Code

Swift has a pretty simple and easily readable, and understandable syntax. Its seamless and comprehensible syntax enables any non-technical person to understand the written code effortlessly. On the other hand, Object -C has a pretty tricky syntax. So, someone who does not have an iOS app development language would have difficulty understanding the code.

Faster App Development

Coding in Swift is much faster and more seamless than Objective-C. Because, unlike Objective-C, Swift uses clear English words instead of cryptic symbols. Developers can write code in one-third of the time required in Objective-C. So, this allows developers to deliver iPhone app development services much faster.

Low Maintenance

Swift is created keeping modern developers in mind. So, it offers seamless code maintenance. As a result, Swift provides a more convenient way to build new applications and modify existing ones. It also helps you solve minor programming mistakes made in the development phase. So, you can quickly write, debug, and maintain code with Swift.

Native Performance Capability

Apple has built Swift specifically for iPhone development services and Apple devices like Apple TV and wearables. So, there would be no compatibility issues with any device components like drivers or systems software. As Swift works fine with all the Apple gadgets, using it can give you native performance for increased speed.

Safe Platform

Swift is created to be a type-safe and memory-safe programming language. Meaning it avoids vulnerabilities linked to uninitialized pointers that could lead to program crashes. Moreover, it is easier to solve errors while writing code in Swift. This reduces the time spent on debugging and removing low-quality code.

Easy Integration with Apple Platforms

Easy integration is one of the most significant benefits of Swift for iPhone app development. It seamlessly integrates with other Apple platforms like iCloud, tvOS, watchOS, and CarPlay. So, you only have to create a single app. And with minor to no changes in the codebase, the app can work on every Apple platform.

ABI Stability

ABI or Application Binary Interface is the binary equivalent to API or API for Swift. ABI allows code to communicate with other libraries and components of a system. Whether it is compiled using different versions of Swift or even Objective-C. This has benefited the Swift ecosystem significantly, enabling binary compatibility for apps and libraries.

Playgrounds Support

Playgrounds make iPhone apps more accessible and exciting. Novice app developers can quickly build apps without a thorough grasp of the Swift Programming language. Experienced developers can also test their code without making an app. This saves a lot of time on developing applications.

Dynamic Libraries Support

Dynamic libraries help link one version of the Swift app with multiple versions. The goal of dynamic libraries is to keep the app up to date and upload new versions of the code to Memory. As Swift supports Dynamic libraries, the app developed using this Language will have reduced initial size and higher performance. 

Effective management of Memory

Swift uses Automatic Reference Counting (ARC). ARC determines the class instances that are not being used and clear them from Memory for the developer. This allows developers to focus more on the app’s performance without reducing CPU or memory allocation.


Cons of Swift in iPhone app development

Still a quite young Language

Swift is still in its infancy. The Language is much younger than its predecessor, Objective-C, which has been here since the 1980s. Although with recent updates, Swift seems to be maturing over time. But these frequent changes often confuses developers whether their code will be compatible with previous versions.

Not a reflective language

Swift is not a reflective language compared to other languages like Java or Kotlin. Instead, it offers an alternative – mirror functionality. Using this functionality, Swift takes an object and self-describes it. But it has no ability to manipulate it from within.

Limited talent pool

Swift is a relatively new programming language for iPhone app development. Although its community is growing significantly, it is still smaller than other programming languages.

Incomplete cross-platform support

Swift supports all the Apple platforms. And with the recent update, it now supports Linux and Windows. However, Swift is created for Native app development; it does not support cross platforms.

It does not support earlier iOS versions

Swift programming language only supports the iOS version 7 or higher. So, Swift will not support legacy projects that run on iOS 6 or below.


While Swift might have some disadvantages, it is still an excellent choice for your iPhone app development. The cons are minor and can be avoided if you hire a swift iOS developer from a well-established iOS app development company.

If you are looking for iOS app developers, HKInfoway could be your perfect partner to hire a Swift iOS developer. We have a great pool of talented iOS developers who build robust and feature-rich iPhone and iPad apps.

Moreover, we offer quality app development services at the best affordable prices. Our ongoing after-development services will ensure your app keeps serving your business with the best and most reliable performance. Contact us today and get a free quote.

Is Swift the future of iOS development?

Looking at Swift’s increasing popularity in iOS app development, it would not be wrong to say that it is the future of iOS development. Admittedly, Swift is a relatively younger language than Objective-C. But with its advanced features, it is rapidly maturing and becoming a go-to option for iOS developers.