iOSDev Study Guide

Overview Today Roadmap Study Guide Architecture Pitches Flashcards Quiz Practice Search Progress

Track readiness

Progress Tracker

A readiness checklist across the whole iOS stack — language, frameworks, shipping, and interview prep. Tick items as you feel solid on them; progress is saved in this browser.

Back up your progress

Everything (grades, spaced-repetition schedule, quiz answers, practice, streak) lives in this browser. Export it to move devices or before clearing site data.

0 of 29 complete · 0%

🧱 Swift & language fundamentals

Value vs reference types, and when to use each
Optionals, safe unwrapping, no needless force-unwraps
Enums with associated values to model state
Protocol-oriented design and generics
ARC: strong/weak/unowned and breaking retain cycles

🎨 SwiftUI & UIKit

Build screens with views, modifiers, stacks, and List
State ownership: @State, @Binding, @Observable, @Environment
Stable identity in ForEach; lazy stacks for long content
UIViewController lifecycle and Auto Layout basics
Bridge SwiftUI ↔ UIKit (representable / hosting controller)

⚙️ Concurrency, data & testing

async/await and structured concurrency (async let, task groups)
Actors, @MainActor, Sendable, and Swift 6 isolation
URLSession + Codable; map messy JSON cleanly
Persistence: SwiftData / Core Data; Keychain for secrets
Unit + UI tests; design for testability via injection

🏛 Architecture & performance

MVVM in SwiftUI; know when unidirectional/TCA fits
Modularize with local Swift packages
Repository pattern and a clean data layer
Profile with Instruments; fix a real hotspot
Offline-first sync and conflict resolution

🚢 Shipping: CI/CD, App Store, security

CI runs tests; understand code signing
TestFlight, version vs build number, phased release
Avoid common App Store review rejections
ATS, privacy manifest, App Tracking Transparency

🎯 Interview readiness

Drilled the flashcards down to a small Due pile
Passed the quiz with explanations understood
Solved several coding prompts without peeking
Rehearsed every pitch out loud on camera
Can place myself on the roadmap and name my next level

iOS development study guide · Swift, SwiftUI & the whole stack. Learn it, say it out loud, drill it, repeat.