Swift has been Apple’s preferred language for iOS development since its introduction in 2014, and by 2026, the question is not whether to use Swift for new projects but whether there is ever a reason to write new Objective-C code. The short answer is no, not for new projects. The longer answer involves understanding that Objective-C still matters because millions of lines of production iOS code are written in it, and those codebases do not disappear just because a newer language exists.
For any new iOS project starting today, Swift is the obvious and only sensible choice. The language is more expressive, safer through its type system and optionals, faster in most benchmarks, and supported by a growing ecosystem of modern frameworks and tools. Apple’s own frameworks like SwiftUI are Swift-only, meaning Objective-C developers cannot access the latest platform capabilities without bridging into Swift.
Where Objective-C Still Lives
Large enterprise apps built over the past fifteen years contain substantial Objective-C codebases. Rewriting them entirely in Swift is rarely practical or economically justified when the existing code works reliably. These codebases evolve gradually, with new features written in Swift while existing Objective-C modules continue functioning alongside them.
Swift’s interoperability with Objective-C makes this coexistence workable. You can call Objective-C code from Swift and vice versa within the same project. This means migration happens organically as modules are updated or replaced rather than requiring a disruptive big-bang rewrite. The bridging is not perfect, some Objective-C patterns translate awkwardly into Swift, but it is robust enough for production use across thousands of apps.
The Practical Migration Path
If you are maintaining an Objective-C codebase, the pragmatic approach is writing all new code in Swift and migrating existing modules to Swift opportunistically when they need significant modification anyway. Modules that work reliably and rarely need changes can remain in Objective-C indefinitely without creating meaningful technical risk.
Focus migration effort on the modules that change most frequently, because those are where Swift’s safety features and expressiveness deliver the most development velocity improvement. Stable utility code that has not been modified in years can wait, potentially forever, because the cost of migrating working code purely for language consistency rarely justifies the effort and risk.
Hiring Implications
The developer talent market has shifted decisively toward Swift. New iOS developers learn Swift first, and many have never written Objective-C. If your codebase is primarily Objective-C, hiring and retaining developers becomes increasingly difficult because the talent pool that wants to work with Objective-C shrinks every year.
This hiring dynamic alone justifies investing in gradual Swift migration even when the existing Objective-C code works perfectly well. An iOS development team experienced with both languages handles mixed codebases productively and manages the migration at a pace that balances code quality improvement with business feature delivery. For more on iOS development strategy, visit our blog.
