mobile / ios

iOS Development, Free

Build for iPhone and iPad — a platform whose users spend the most on apps. Learn Swift and SwiftUI from Apple's own free tutorials and language guide. All resources current.

iOS is the platform to target if app revenue matters — its users spend far more than Android's on average. Apple's modern stack is Swift (a fast, safe, elegant language) and SwiftUI (a declarative UI framework). You'll need a Mac to build and ship, but all the learning material is free. Start with the language, then Apple's hands-on SwiftUI tutorials.