Objective-C built the iPhone app economy. For roughly a decade, essentially every iOS and macOS application was written in it, and an enormous amount of that code is still running, still generating revenue, and still ending up in disputes. Reviewing it takes engineers who worked in the Apple ecosystem when Objective-C was the daily language, because its idioms look like nothing else in litigation.
The short version: Objective-C appears in litigation wherever iOS and macOS applications do: app copyright and trade secret fights between former collaborators, patent cases on mobile features, and acquisition disputes over what a codebase really contains. Its dynamic runtime and its bridge to Swift both demand reviewers with genuine platform experience.
Where Objective-C cases come from
The most common pattern is the fractured partnership: co-founders or contractors part ways, a similar app appears, and the question becomes what was copied. App-economy businesses also generate patent suits over mobile-specific features (location, notifications, payments, camera pipelines) where infringement lives in the app's source. And in acquisitions, Objective-C codebases get examined for provenance: what was written in-house, what was taken from elsewhere, and what the seller actually owned.
What a litigation-grade Objective-C review looks for
- Runtime behavior. Message dispatch, categories, and method swizzling let Objective-C programs alter their own behavior at run time, which a reviewer must understand to say what the code actually does.
- Memory management history. Manual retain/release versus ARC leaves fingerprints that help date code and trace lineage.
- Copying analysis. Structural comparison of classes, categories, and interface files, robust to renaming and reorganization.
- The Swift boundary. Most surviving Objective-C coexists with Swift; understanding the bridging layer is essential to following the accused functionality.
- Build and distribution artifacts. Xcode project history, provisioning, and App Store submission records that anchor the timeline.
The right reviewers
The pool of engineers who genuinely know Objective-C shrinks every year as the platform moves to Swift, which makes expert selection matter more, not less. Our source code review experts for Objective-C matters shipped production iOS and macOS software, and every review follows the documented discipline described in our source code review services and our guide to vetting a code review team.