Can Objective-C and Swift be used together in the same project?

Yes. Apple designed Swift to be fully interoperable with Objective-C. Many real-world apps contain both languages, and new Swift code can call Objective-C classes and vice versa. This makes it practical to incrementally modernise legacy codebases rather than rewriting everything at once.

Is Objective-C a good choice for maintaining legacy iOS applications?

Yes - if you have an existing iOS or macOS application written in Objective-C, continuing to maintain and extend it in Objective-C is a sound strategy. A full rewrite to Swift is rarely necessary and often risky. We can maintain, improve, and extend your Objective-C codebase while introducing Swift where it adds the most value.

What Apple frameworks and tools support Objective-C?

Objective-C is fully supported by Apple's Xcode IDE, the iOS SDK, and the macOS SDK. It works with all Cocoa and Cocoa Touch frameworks, giving it access to the complete range of Apple platform capabilities including UIKit, CoreData, CoreLocation, and more.

How does Objective-C compare to Swift for new projects?

For new Apple platform projects, Swift is generally the better choice — it's more concise, safer by design (null safety), faster to write, and actively developed by Apple. However, Objective-C remains the right choice when extending existing Objective-C codebases or integrating with legacy libraries that don't yet have Swift equivalents.

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Objective-C development

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What it is

Objective-C is a general-purpose, object-oriented programming language that was developed in the early 1980s. It is the primary language used for developing applications for macOS and iOS, and it was the main language used by Apple for its Cocoa and Cocoa Touch frameworks before the company began transitioning to Swift in 2014. Objective-C is a high-level language that is easy to read and understand, and it provides a wide range of powerful features for developing sophisticated applications. There are many developers in Poland who are skilled in Objective-C, as the language has been widely used for many years and is still popular for developing applications for macOS and iOS. Objective-C has slipped to #30 on the TIOBE Programming Community Index as of July 2026, with a 0.58% rating, as most new Apple development has shifted to Swift.

Benefits of using Objective-C for your project

There are several advantages to using Objective-C as a programming language:

One of the main benefits of using Objective-C is that it is an object-oriented language, which means it is organized around objects rather than actions. This can make it easier to understand and work with, as the code is structured in a logical and organized way.
Another advantage of Objective-C is that it is a high-level language, which means it is easy to read and understand, even for people who are not experienced programmers. This can make it easier to work with code written by others, and it can also make it easier to maintain and update code over time.
Objective-C provides a broad spectrum of features and capabilities, making it suitable for developing complex applications. This can allow developers to build powerful and sophisticated software using the language.
It is well-supported by Apple, with a range of development tools and resources available for developers, including Xcode, the iOS SDK, and the macOS SDK. This can make it easier for developers to build applications for Apple platforms using the language.
Objective-C has a long history and has been widely used for many years, which means there is a wealth of knowledge and resources available for developers. This can be helpful for developers who are new to the language, as well as those who are more experienced and looking to learn more advanced concepts.

Where and when Objective-C can be used?

Objective-C is a versatile programming language that can be used to develop software applications for a range of platforms. While Swift has largely superseded Objective-C for iOS development, it is still used in some applications and is a common language for developing applications on macOS. It is an object-oriented language that is known for its simplicity and flexibility, which makes it well-suited for building applications on Apple's platforms, as well as for other purposes. In addition to being used on its own, Objective-C is often paired with tools and frameworks such as the Cocoa and Cocoa Touch frameworks to create feature-rich applications.

Why choose us

Trustworthy partnership

We put a strong emphasis on trust-based relationship with clients and appreciate when both sides can collaborate on achieving goals in the best way possible.

High performance solutions

Our company adapts the technology stack to best suit the project’s needs and delivers solutions that will last and perform for years.

Diverse background team

Diverse workplace helps team members to constantly expand their knowledge and bring to the table inputs from various fields and work sectors.

Thorough quality assurance

Established and optimised QA processes that ensure less costs in the long-term. Both manual code reviews & automated tests are the way to go.

How our Objective-C team is built and managed?

It is important for our company, that team members have good communication skills and were able to work effectively as part of a team. It is also essential for the team to have clear goals and objectives, as well as a defined project plan, in order to ensure that the development process runs smoothly.

Objective-C team consists of software developers with expertise in the Objective-C programming language, as well as project managers, quality assurance testers, and other professionals who are responsible for different aspects of the development process. The team is managed by a single lead developer or project manager.

FAQs

Objective-C is Apple's original object-oriented programming language for building macOS and iOS applications, and was the primary language for Cocoa and Cocoa Touch development before Swift was introduced in 2014. While Swift is now preferred for new projects, Objective-C remains widely used in existing codebases and can coexist with Swift in the same app.

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