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Career path

Objective-C Developer

Learn Objective-C — the language Apple was built on. Billions of lines of Foundation, UIKit, AppKit are still ObjC.

mixed2 courses13 lessons~3 hoursFree
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Start → ship

1

You start with

Objective-C Fundamentals

2

You ship

Objective-C Intermediate

2 courses in order, every exercise graded on the executor.

Course sequence

Follow it in order. Each course is its own certificate.

  1. 1

    Objective-C Fundamentals

    Not started

    Learn Objective-C: the language Apple was built on. iOS apps used it from 2007 until Swift took over in 2014, but billions of lines of Foundation, UIKit, and AppKit are still Objective-C — and Swift interops directly with it. Smalltalk-style messaging on top of C.

    intermediateobjc6 lessons~2h
  2. 2

    Objective-C Intermediate

    Not started

    Level up from Objective-C Fundamentals. Categories, protocols, blocks, NSArray/NSDictionary, NSError, ARC. The features that make ObjC powerful — and quietly weird.

    intermediateobjc7 lessons~2h

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