WWDC 2025 delivered on the one thing I was hoping to see from WWDC 2024: free, unlimited invocation of Apple's on-device language models by developers. It may…

Ever wondered how Xcode's Coding Intelligence prompt works? In this blog post, we'll take a deep dive into the prompt's inner workings and explore how it helps developers write code more efficiently.

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Discover how SwiftUI's ZStack uses layoutPriority to compute size, allowing dynamic container resizing by toggling view importance—no ifs, no switches.

I’ve been an Apple “fanboy” for almost 20 years now. Ever since I got my first MacBook Pro back in 2005. I’ve been developing for iOS for the past 15 of those years, and every June, I get excited for WWDC like it’s Christmas morning. 🤓 This year? Honestly…

Concerned about ChatGPT's privacy in Xcode? This guide shows you how to take control by integrating Anthropic's Claude and Google's Gemini into Coding Intelligence.

A quick tip on how I use repo2txt and Google AI Studio to understand new codebases. Gemini's 1M token context window is perfect for asking questions about code.

Recently there’s been very exciting developments in the Godot game engine, that have allowed really easy and powerful integration into an existing normal iOS or Mac app. I couldn’t find a lot of documentation or discussion about this, so I wanted to shine…

Actor isolated protocol conformances are a super useful way to ensure that certain protocol conformances are only available on a specific actor. That said, with this feature you’ll open yourself up to…

Learn how the #Playground feature in Xcode 26 can help you experiment with code snippets directly in the canvas.

If you’ve ever tried straddling two worlds—one foot in the elegant, type-safe realm of Swift and the other in the sprawling ecosystem of Java—you know the pain of keeping them in sync. Swift 6.2 introduces a first-class Swift–Java interoperability layer via…

Learn about Design Gmail in-depth with Mobile Dev Interview's comprehensive system-design resource.

The migration path to Swift 6 is now a lot smoother, with lots more guideposts. Work through this tutorial to find out how much easier it’s become.

Learn how to implement user-friendly, type-safe error handling in Swift 6 with structured diagnostics and a hierarchical error model.

Learn how to use Foundation Models in iOS apps

How Swift’s CodableWithConfiguration API can be used to inject additional, required data into a type’s decoding process, without having to use optionals or declare any additional decoding-specific types.

Discover Swift 6.2’s new concurrency-safe NotificationCenter.Message APIs to ensure type safety, eliminate runtime errors, and streamline notification handling.