ios-developer-competency-matrix

Professional iOS development competency coverage across Swift language mastery, SwiftUI + UIKit UI development, architecture/patterns (MVVM, Coordinator, Clean), networking/data/persistence, platform capabilities (lifecycle, background, device features), accessibility, testing/debugging/performance, and CI/CD + App Store distribution. Use when implementing or reviewing iOS code for best-practice patterns, concurrency/thread-safety, memory/ARC issues, architecture decisions, data layers, testing strategy, or release readiness.