App Development with Swift study guide
App Development with Swift · Work through your exam, one topic at a time.
App Development with Swift is an entry-level Apple programming credential delivered through Certiport, a Pearson VUE business. It is aimed at students and early-career developers who are learning to build iOS and iPadOS apps in Apple's Swift language, typically inside a classroom, career-technical, or workforce-readiness programme. Most candidates prepare through instructor-led coursework, Apple's own educational materials, and hands-on practice building small apps in Xcode. The skills assessed cluster into five broad areas: Swift language fundamentals such as types, constants, and variables; control flow, functions, and closures; data modelling with structures, classes, enumerations, and protocols; collections, optionals, and error handling; and user interfaces and app architecture, including views, state, and how an app's pieces fit together. The App Development with Swift study guide has 5 sections and about 1,572 words.
01Swift Language Fundamentals: Types, Constants, and Inference
Swift is statically typed and type-safe: every variable has a definite type at compile time, and the compiler infers it from the initializer. Use let for values that never change and var only when mutation is required.
295 words, about 1 min02Control Flow, Functions, and Closures
if conditions must be Bool ; Swift has no truthiness. guard exits the current scope early, and its else must transfer control ( return , throw , break , continue , or a never-returning call).
315 words, about 2 min03Data Modeling with Structures, Classes, Enumerations, and Protocols
Use a struct for independent values with value semantics: assignment and passing copy the value, although copy-on-write makes large collections cheap. Use a class when you need identity, shared mutable state, inheritance, or deinitialization.
313 words, about 2 min04Collections, Optionals, and Error Handling
Array is ordered and index-based; Dictionary maps unique keys to values; Set stores unique hashable elements with no order. All three are value types with copy-on-write.
319 words, about 2 min05User Interfaces and App Architecture
SwiftUI views are lightweight structs describing UI as a function of state. body must be pure and fast; never mutate state while it is being evaluated.
330 words, about 2 min