Don’t Write Off Objective-C – The ‘Old’ Skill That Still Pays Big
Carl Bailey
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Posted Jul 6, 2025
Swift may be the future, but Objective-C is far from dead. Learn why knowing this legacy language is still a valuable—and profitable—skill for iOS developers in 2025.
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Don't Write Off Objective-C – The 'Old' Skill That Still Pays Big
The Lingering Giant: Why Objective-C is Still Here
Legacy Code is Everywhere
The Foundation of Apple's Frameworks
C and C++ Interoperability
The Freelancer's Advantage: Finding Your Niche
Less Competition, Higher Value
The Profitable World of App Modernization
Becoming the 'Bridge' Developer
How to Approach Learning Objective-C in a Swift-First World
Focus on Reading, Not Just Writing
Understand the Key Differences
Learn Swift-Objective-C Interoperability
Is It for Everyone?
When to Prioritize It
When to Focus on Swift
Conclusion
References
Don't Write Off Objective-C – The 'Old' Skill That Still Pays Big
In the fast-paced world of iOS development, the focus is almost always on the new: the latest Swift update, the newest frameworks. It's easy to dismiss Objective-C as a relic of the past. Yet, thousands of successful apps and critical frameworks are built with it, making it a surprisingly relevant and lucrative skill. While you're busy exploring augmented reality development with ARKit, it's worth remembering the foundation that made it all possible.
This article will argue why Objective-C is not dead and how having it in your toolkit can open doors to unique, high-paying opportunities. Whether you're looking to hire iOS developers or become one yourself, understanding the value of Objective-C can give you a significant edge. This is especially true when integrating with next-gen technologies like AI and Core ML, where legacy code often meets cutting-edge innovation.
The Lingering Giant: Why Objective-C is Still Here
Let's move past the simple "Swift is better" narrative. The reality is far more nuanced. Objective-C isn't just hanging around out of nostalgia—it's deeply embedded in the iOS ecosystem for very practical reasons.
Legacy Code is Everywhere
Think about the apps you use every day. Facebook, Instagram, Uber, Airbnb—many of these giants were built when Objective-C was the only option. These aren't small projects we're talking about. They represent millions of lines of code, years of optimization, and battle-tested solutions.
Companies with massive, stable codebases aren't going to rewrite everything from scratch. Why would they? The risk is enormous, the cost astronomical, and the benefit often minimal. Instead, they need developers who can maintain, update, and add features to existing Objective-C code.
Here's what this means for you: every time one of these companies needs to fix a bug, add a feature, or integrate a new API, they need someone who speaks Objective-C. And as fewer new developers learn the language, those who do become increasingly valuable.
The Foundation of Apple's Frameworks
Here's something that might surprise you: many of Apple's core frameworks still have deep roots in Objective-C. While Swift provides a modern interface, the underlying implementation often traces back to Objective-C.
This isn't just trivia—it has real implications. When you hit a weird bug or need to optimize performance, understanding Objective-C gives you X-ray vision into how these frameworks actually work. You can read the headers, understand the patterns, and debug issues that would leave Swift-only developers scratching their heads.
Ever wondered why certain APIs behave oddly? Or why some performance characteristics seem counterintuitive? Often, the answer lies in the Objective-C heritage. Developers who understand both languages can navigate these quirks with confidence.
C and C++ Interoperability
Here's where Objective-C really shines: it plays beautifully with C and C++ code. This isn't just a nice-to-have feature—it's essential for entire categories of apps.
Gaming engines often rely on C++ for performance. Audio processing libraries are frequently written in C. Computer vision algorithms? You guessed it—C and C++. While Swift has made progress in this area, Objective-C's interoperability is mature, well-documented, and battle-tested.
If you're working on an app that needs to squeeze every ounce of performance from the device, or integrate with existing C/C++ libraries, Objective-C often becomes not just useful, but necessary. The bridging is cleaner, the patterns are established, and the community knowledge runs deep.
The Freelancer's Advantage: Finding Your Niche
Now let's talk money and opportunity. As a freelancer or contractor, knowing Objective-C can be your secret weapon in a crowded marketplace.
Less Competition, Higher Value
Simple economics tells us that when supply decreases and demand remains steady, prices go up. That's exactly what's happening with Objective-C developers. As coding bootcamps and online courses push everyone toward Swift, the pool of proficient Objective-C developers is shrinking.
But the demand? It's still there. All those legacy apps still need maintenance. All those mixed codebases still need updates. And companies are willing to pay premium rates for developers who can handle this work.
I've seen Objective-C maintenance contracts that pay 20-30% more than equivalent Swift work. Why? Because finding someone who can confidently dive into a decade-old codebase and make surgical changes without breaking everything is increasingly rare.
The Profitable World of App Modernization
Here's a common scenario: a company has a successful app built in Objective-C. It works well, users love it, but it's starting to show its age. They want to modernize—add new features, update the UI, integrate with modern services.
But here's the thing: they don't want (or can't afford) a complete rewrite. What they need is someone who can modernize incrementally. Maybe migrate certain modules to Swift. Perhaps integrate SwiftUI for new screens while keeping the core logic intact. Or update old dependencies without breaking existing functionality.
This type of work is incredibly valuable and surprisingly common. It requires deep knowledge of both languages and the judgment to know what to modernize and what to leave alone. If you can position yourself as the developer who can bridge old and new, you'll never lack for interesting, well-paid projects.
Becoming the 'Bridge' Developer
Many large iOS projects today are mixed-language environments. They have Objective-C at the core with new features written in Swift. Or they're gradually migrating from one to the other. These projects need developers who can work across the entire codebase without missing a beat.
Being fluent in both languages makes you incredibly valuable to these teams. You can review pull requests in either language. You can trace bugs across language boundaries. You can make architectural decisions that consider both the legacy constraints and future direction.
This isn't just about technical skills—it's about being the person who reduces friction and increases velocity for the entire team. That's the kind of value that commands top rates and interesting opportunities.
How to Approach Learning Objective-C in a Swift-First World
So you're convinced there's value in learning Objective-C. But where do you start? How do you efficiently add this skill to your toolkit without getting bogged down in outdated practices?
Focus on Reading, Not Just Writing
Here's a counterintuitive tip: start by learning to read Objective-C, not write it. Your first goal should be comfort with existing code, not creating new projects from scratch.
Why? Because most of your Objective-C work will involve understanding and modifying existing code. You'll be reading old Stack Overflow answers, deciphering framework headers, and navigating legacy codebases. Writing brand new Objective-C is increasingly rare.
Start by taking a Swift project you know well and looking at its Objective-C headers. Read through Apple's framework headers. Browse open-source Objective-C projects on GitHub. Train your brain to parse the syntax and understand the patterns.
Understand the Key Differences
Objective-C isn't just Swift with different syntax—it has fundamentally different concepts you need to grasp. Here are the big ones:
Header vs. Implementation Files: Unlike Swift's single-file approach, Objective-C splits declarations (.h files) from implementations (.m files). This separation might feel cumbersome at first, but it serves important purposes in large codebases.
Message Passing Syntax: The square bracket syntax
[object method] isn't just different punctuation—it represents a different programming model. Messages can be sent to nil without crashing, which leads to very different defensive programming patterns.Memory Management Echoes: Even with ARC (Automatic Reference Counting), Objective-C code often shows patterns from manual memory management days. Understanding these patterns helps you write safer code and debug memory issues.
Nil vs. NSNull: In Objective-C, nil and NSNull serve different purposes, especially in collections. This distinction doesn't exist in Swift and can trip up developers moving between languages.
Learn Swift-Objective-C Interoperability
The real practical skill isn't just knowing both languages—it's making them work together seamlessly. This is where you'll spend most of your time in real projects.
Master the bridging header—that crucial file that exposes Objective-C code to Swift. Understand when and how to use
@objc attributes to make Swift code visible to Objective-C. Learn the nuances of how types convert between languages.Practice creating mixed-language projects. Start with something simple: create a Swift app that uses an Objective-C library. Then try the reverse. Build comfort with the friction points and common patterns.
Pay special attention to how Swift features map (or don't map) to Objective-C. Optionals, enums with associated values, protocol extensions—understanding these boundaries helps you design better mixed-language architectures.
Is It for Everyone?
Let's be honest: learning Objective-C isn't the right move for every iOS developer. Your career goals and interests should guide this decision.
When to Prioritize It
You should seriously consider learning Objective-C if you're interested in working for larger, established companies. These organizations often have substantial Objective-C codebases and value developers who can work with their existing technology stack.
It's also a smart move if you want to specialize in app maintenance and modernization. This niche is profitable and likely to remain relevant for years. Companies will continue needing developers who can breathe new life into older apps.
Consider it if you're drawn to low-level programming or performance optimization. The C interoperability of Objective-C opens doors to systems programming, game engines, and performance-critical code that's harder to access from pure Swift.
Finally, if you enjoy being the go-to expert—the person others turn to when they hit a wall—Objective-C knowledge positions you perfectly. You become the developer who can solve problems others can't even diagnose.
When to Focus on Swift
For developers just starting their iOS journey, diving deep into Swift first makes more sense. The language is more approachable, the learning resources are better, and most new projects start with Swift.
If your goal is to build new apps from scratch, especially as an indie developer or startup founder, mastering Swift and its modern ecosystem should be your priority. SwiftUI, Combine, and the latest frameworks are where Apple is investing its future.
Similarly, if you're drawn to the cutting edge—the latest iOS features, the newest design patterns, the experimental frameworks—Swift is where the action is. Objective-C knowledge won't help you much with the latest SwiftUI innovations.
The key is being strategic about your learning investment. Time spent learning Objective-C is time not spent mastering SwiftUI or exploring the latest Swift features. Make sure the tradeoff aligns with your career goals.
Conclusion
Objective-C might not be the hot new thing, but that's exactly why it can be so valuable. In a world obsessed with the latest and greatest, the developers who can work with proven, established technology often find the most interesting opportunities.
The language isn't going away anytime soon. Too much critical infrastructure depends on it. Too many successful apps are built with it. And too few developers are learning it. That combination creates opportunity for those willing to invest in this "old" skill.
Whether you're a freelancer looking for high-value contracts, a developer wanting to stand out in job interviews, or simply someone who wants to understand iOS development more deeply, Objective-C offers real benefits. It's not about choosing between Swift and Objective-C—it's about recognizing that knowing both makes you a more complete, more valuable iOS developer.
The next time someone dismisses Objective-C as outdated, remember this: some of the highest-paid iOS work involves this "old" language. In technology, what matters isn't always what's newest—it's what solves real problems for real companies. And Objective-C? It's still solving plenty of problems, and paying well for those who can help.