Swift vs Objective C: Unveiling the Best for Your Needs

Zoltan Fehervari

November 18, 2023

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Choosing between Swift and Objective C? Our article breaks down the key differences to help you decide which is best for your app in 2023.


With both Swift and Objective C being popular choices for iOS and macOS development, it's important to know which language is best suited for your programming needs.

Now, we will focus on Swift vs Objective C and provide valuable insights into their strengths and weaknesses. We'll evaluate various factors such as ease of use, performance, community support, and more to help you make an informed decision.

Key Takeaways

  • Choosing the right programming language is essential for your application's success

  • Swift and Objective C are popular choices for iOS and macOS development

  • We'll explore the strengths and weaknesses of each language in various factors

  • Factors such as ease of use, performance, community support, and more will be evaluated

  • This article will guide you in choosing the best language suited for your programming needs

Swift programming language - Bluebird
Objective C programming language - Bluebird

Swift vs Objective C

We'll briefly introduce both Swift and Objective C, providing an overview of each language's unique characteristics.


Swift is a modern, powerful, and intuitive programming language developed by Apple. Introduced in 2014, Swift was designed to be a faster, more efficient, and more developer-friendly language than its predecessor, Objective C. Swift is open-source, allowing developers to contribute to its development and improve its functionality over time.

Swift has become increasingly popular in recent years, thanks to its streamlined syntax, which makes it easier to read and write than Objective C. Additionally, Swift offers a range of features that make it easier to build robust, high-performance applications, such as automatic memory management and powerful error handling.

Objective C

Objective C has been the go-to language for iOS and macOS development for many years. It was first introduced in the 1980s and has since become a mainstay in the Apple development community. While it may not be as modern or as streamlined as Swift, Objective C is a highly versatile language that offers a wide range of features and functionality.

One of the main advantages of Objective C is its ability to interact with a vast array of APIs. Additionally, the language offers a manual memory management system, which allows developers to fine-tune their applications for optimal performance.

Syntax and Readability

When it comes to programming languages, syntax and readability are crucial considerations. Swift and Objective C have some differences in syntax and readability that can impact your development process.

Let's start by talking about Swift. One of the most significant advantages of Swift is its modern, clean, and concise syntax. It was designed to simplify the code and make it more readable, even for those new to the language.

For example, Swift's syntax for declaring variables is straightforward:


Objective C

var name: String = "John Doe"

NSString *name = @"John Doe";

As you can see, Swift's syntax is more concise, making it easier to read and write.

On the other hand, Objective C has a more verbose syntax that can be challenging to master. The code can become more complex, making it harder to read and debug, especially for beginners.

Here's an example of Objective C's syntax for declaring variables:


Objective C

var name: String = "John Doe"

NSString *name = [[NSString alloc] initWithUTF8String:"John Doe"];

Objective C syntax is more complex and requires more lines of code, making it less readable and more challenging to maintain.

Swift's syntax is cleaner and more concise than Objective C, making it easier to read and write, even for beginners.

Performance and Speed

Performance is a crucial factor when choosing a programming language, and it's no different when comparing Swift and Objective C. Swift was designed to be faster and more efficient than Objective C, and it shows in the benchmarks.

According to Apple, Swift is up to 2.6 times faster than Objective C when it comes to CPU performance and up to 8.4 times faster when it comes to GPU performance. This means that Swift can perform complex calculations and algorithms faster and with less strain on the device's resources, resulting in smoother user experiences.

Swift's improved performance is mainly due to its design, which eliminates the legacy baggage of Objective C and includes modern programming concepts such as automatic reference counting, generics, and functional programming constructs. Additionally, Swift's compiler is optimized to generate highly optimized machine code that takes advantage of the latest hardware features.


CPU performance

GPU performance


Up to 2.6x faster

Up to 8.4x faster

Objective C



Objective C doesn't have built-in support for modern graphics APIs such as Metal. This means that if you're developing graphics-intensive applications, Swift is the clear winner.

However, it's worth noting that performance is not the only factor to consider when choosing a programming language. Other factors such as syntax, memory management, and community support are equally important, and we'll look at them in the following sections.

Swift vs Objective C: Memory Management

Memory management is a critical consideration for any developer, and choosing the right approach can impact the performance and stability of your application. In this section, we'll dissect the differences in memory management between Swift and Objective C.

Objective C

In Objective C, memory management is handled manually using reference counting. Every time an object is created, it has a retain count of 1. When the object is no longer needed, it must be released manually, decreasing its retain count. Once the retain count reaches 0, the object is deallocated from memory. This approach requires developers to keep track of the retain counts of every object and release them when appropriate.

While this manual approach allows for more control over memory usage, it can also be time-consuming and error-prone. Developers must be diligent in releasing objects correctly to avoid memory leaks or crashes.


Swift, on the other hand, employs automatic reference counting (ARC) to manage memory. When an object is created, the compiler automatically inserts retain and release statements based on its usage throughout the code. This means developers do not need to manually manage retain counts, reducing the risk of memory leaks and crashes.

Swift also provides additional safety features, such as optionals, to prevent common memory-related errors. Optionals allow developers to specify whether a variable can have a nil value, reducing the risk of accessing deallocated memory.

Which approach is best?

The best approach for memory management depends on the specific requirements of your project. If you need precise control over memory usage and are willing to invest extra time and effort into manual management, Objective C may be the better choice. However, if you prioritize easier and safer memory management, Swift's automatic approach may be more suitable.


Memory Management Approach

Objective C

Manual reference counting


Automatic reference counting (ARC)

Overall, both Swift and Objective C offer different approaches to memory management, each with its own advantages and disadvantages. It's important to evaluate the specific needs of your project and choose the approach that best aligns with your priorities.

Interoperability and Legacy Code

Interoperability is a vital aspect to consider when deciding between Swift and Objective C, especially if you're working on an existing project or need to integrate with legacy code. Both languages can interact with each other but in different ways.

Objective C can work with Swift code using bridging headers, which allow you to expose your Objective C code to Swift. This approach works well if you have a large Objective C codebase that you want to gradually migrate to Swift or if you prefer to continue using Objective C for certain parts of your project.

On the other hand, Swift provides a more seamless interoperability experience with Objective C. You can use Objective C code in your Swift project without any additional configuration or bridging headers. Swift can also automatically generate an interface to the Objective C code, making it easier to call Objective C APIs from Swift. This means that Swift can handle legacy code more efficiently and with fewer compatibility issues than Objective C.

Community and Support

When choosing a programming language, the strength of its community and support are crucial factors to consider. In this part, we will compare the communities and support for Swift and Objective C.

Swift is a newer language compared to Objective C, but it has gained a strong community of developers, with active participation in forums, social media, and conferences. The Swift community is constantly growing, with new resources and tools being developed to support developers.

On the other hand, Objective C has been around for much longer and has a more established community. However, the community is slowly transitioning to Swift as the preferred language for iOS and macOS development.


Objective C

Community Size

Large and growing

Established, but shrinking

Active Involvement

High, with regular updates and contributions from developers

Low, with a decreasing number of updates and contributions


Abundant, with a wide range of tutorials, documentation, and open-source libraries

Limited, with fewer new resources being developed

Based on these comparisons, we believe that Swift has a stronger community and support system. Its growing popularity and active involvement from developers provide reassurance that it will continue to receive updates and improvements in the future.

Learning Curve and Adoption

One of the most important factors to consider when choosing a programming language is the learning curve. For developers who are new to iOS or macOS development, it's crucial to choose a language that is easy to learn and has ample learning resources available.

In terms of learning curve, Swift has a clear advantage over Objective C. With its simple and modern syntax, it's easier for new developers to grasp the language's concepts and start building apps. In addition, Swift has a wealth of learning resources, including documentation, tutorials, and video courses, that can help developers quickly get up to speed with the language.

However, developers who are already proficient in Objective C may find the transition to Swift more challenging due to the language's differences in syntax and features. It's important to consider your current skillset and experience when deciding which language to adopt.

According to the TIOBE Index for November 2023, Swift is ranked 17th among programming languages, having risen in the rankings with a current rating of 1.04%. On the other hand, Objective-C is positioned at number 32, with a rating of 0.49%. These rankings are reflective of their popularity and usage among programmers, indicating Swift's growing prominence in the development community.

On the other hand, Objective C has been the primary language for iOS and macOS development for many years and has a large installed base of legacy code and applications. Some developers may choose to stick with Objective C to maintain compatibility with existing projects or to leverage existing codebases.

Future Proofing and Longevity

As developers, we always want to choose a language that will remain relevant and supported in the future. When it comes to the debate of Swift vs Objective C, both languages have their advantages and disadvantages in terms of future proofing and longevity.

Swift's Future Prospects

Swift is a relatively new language, having been introduced by Apple in 2014. However, it has gained a lot of traction in the iOS and macOS development community and has seen significant improvements and updates since its release. Apple has shown a commitment to Swift by making it open source and continuing to invest in its growth and development. As a result, Swift is expected to remain relevant and widely used in the future.

Objective C's Longevity

Objective C has been around for much longer than Swift and has been the primary language for iOS and macOS development for many years. While it has seen a decline in recent years due to the popularity of Swift, Objective C is still widely used and supported. Many companies and developers have legacy code written in Objective C, which ensures its continued relevance and longevity in the future.


Objective C

Future Prospects

Swift is a relatively new language, but it has gained significant traction in the iOS and macOS development community and has been supported and invested in by Apple.

Objective C has been around for a long time and has been widely used for iOS and macOS development. While it has seen a decline in recent years, it still has a large community and is supported by many companies.


Swift's relatively recent introduction leaves its long-term prospects subject to uncertainty, but Apple's investments and the language's popularity provide a good indication for its continued relevance.

Objective C has been a trusted language for iOS and macOS development for many years, with legacy code ensuring its continued use.

When it comes to future proofing and longevity, both Swift and Objective C have their strengths and weaknesses. It's important to consider your specific project requirements and career aspirations when making a decision between the two languages.

Use Cases and Industry Trends

Now that we've examined the strengths and weaknesses of Swift and Objective C, let's take a closer look at their respective use cases and industry trends. By analyzing the most common use cases for each language and the latest industry trends, we can better understand which language is the best fit for your programming needs.

iOS Development

For iOS app development, both Swift and Objective C are commonly used. However, Swift has been gaining popularity in recent years, with more developers adopting it for their iOS projects. According to the latest industry trends, Swift is favored by startups and small to medium-sized companies, while Objective C is still preferred by large enterprises.

macOS Development

When it comes to macOS development, Objective C has been the go-to language for many years. It has a robust API and is known for its stability and reliability. However, Swift is now considered a viable alternative for macOS development, especially for newer projects. With its improved performance and ease of use, Swift is becoming more popular in the macOS community.

Cross-Platform Development

If you're looking to develop cross-platform applications that can run on both iOS and Android, Swift may not be the best choice. Objective C, on the other hand, can be used in combination with other programming languages, such as Java or Kotlin, to create cross-platform applications.


Finally, both Swift and Objective C have their own strengths and weaknesses. Swift is a modern language that offers improved performance, cleaner syntax, and automatic memory management. On the other hand, Objective C has been a go-to language for iOS development and has a large community and extensive legacy code support.

Our Recommendation

Based on our analysis, we recommend choosing Swift for most new iOS development projects. It offers improved performance, automatic memory management, and a modern syntax that is easier to learn. However, if you're working on an existing project or need to integrate with legacy code, Objective C might be a better choice.

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