Chapter 8: Data Persistence: SwiftData, Core Data & Local Storage

Thu, 26 Feb 2026 00:00:00 +0000

Chapter 8: Data Persistence: SwiftData, Core Data & Local Storage

Welcome back, future iOS rockstar! So far, you’ve learned how to make beautiful interfaces and manage your app’s temporary state. But what happens when your users close the app? Poof! All that hard work, all that data, gone. That’s where data persistence comes in.

In this chapter, we’re going to dive deep into how your iOS apps can remember things, even after they’re closed. We’ll explore various strategies, from simple key-value storage to powerful object graph management with Apple’s modern framework, SwiftData. By the end, you’ll understand when to use each tool and gain hands-on experience saving and loading data like a pro. Get ready to give your apps a memory!

Chapter 16: Security, Authentication & User Permissions

Thu, 26 Feb 2026 00:00:00 +0000

Introduction

Welcome to Chapter 16! As your apps grow in complexity and handle more user data, security, authentication, and user permissions become absolutely critical. Building a great user experience is important, but building a secure one is non-negotiable. Users trust you with their personal information, and Apple’s App Store Review Guidelines enforce strict rules to protect that trust.

In this chapter, we’re going to explore the essential tools and best practices for securing your iOS applications. We’ll learn how to store sensitive data safely, implement robust user authentication using biometrics, and correctly manage user permissions to access device features like the camera or location. Crucially, we’ll also tackle the latest requirements around privacy manifests, which are vital for App Store compliance as of 2026.

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Chapter 8: Data Persistence: SwiftData, Core Data & Local Storage