AI-Driven Swift
Architecture
Already in the Hands of Developers
Real copies used by iOS developers.
Foreword by Jon Reid
Jon Reid is the author of iOS Unit Testing by Example: XCTest Tips and Techniques using Swift and one of the most respected voices in Test-Driven Development on Apple platforms. His hands-on experience spans Apple, American Express, Adobe, eBay, and Walmart, applying TDD in real production codebases under genuine engineering constraints, not controlled examples. Through qualitycoding.org, he has spent years translating that experience into practical guidance, articles, videos, and talks that have shaped how a generation of iOS engineers thinks about code quality and sustainable delivery.
"They are the guides I didn't know I needed, writing the book I didn't know I was waiting for."
What experts say
Trusted voices from the iOS community on what this book changes for engineers.
A couple of weeks ago I was scrolling through my LinkedIn feed and came across posts from Walid SASSI and Dave Poirier. I had previously watched Walid's interview with Dave, which I really enjoyed and would definitely recommend, so when they shared that they had written a book together, I was genuinely excited.
AI-driven development is something you need to understand today. If you ignore it, you fall behind. This book does a great job helping to get oriented in this space.
It starts with the basics of working with AI, and then gets into the stuff that actually matters in real projects: TDD, architecture, AI inside applications, and agent workflows. There are also useful comparisons of models along the way.
The book answered many of the questions I had. The content is focused and straight to the point. It feels very timely, and I would confidently recommend it.
Definitely a must-read.
I’ve been following Walid and Dave for quite a while now and have loved all of their writings and postings. So when I saw they collaborated to write AI Driven Swift Architecture, I knew this was going to be fantastic (and timely).
This book is essential for any Swift developer (of any level) looking to solidify what Swift looks like in the age of AI. There’s no doubt about it, AI has disrupted everything and we’ll still be learning what that means for software development for years to come, but one thing is clear: everyone should be learning about and practicing the concepts in this book, today.
As a Lead, I’ll be recommending this to my developers, for sure.
Trying to make the most out of travel time. Just started AI Driven Swift Architecture by Walid SASSI & Dave Poirier.
Really keen to understand how AI is changing the way we build and architect apps. Excited to learn!
When you find a book that connects modern Swift architecture with AI in a way that feels practical and easy to apply, you know it’s worth it.
Definitely recommended for iOS developers who want to combine AI with solid Swift concepts.
I am reading AI Driven, Swift Architecture and I find it more than interesting.
Not the first time I have read Walid SASSI and Dave Poirier, they delivered again!
I might not be the first one posting a review of AI Driven Swift Architecture, but I do have a valid point: I read the book carefully, patiently, and with enough time to absorb the information. And with 500+ pages covering such a wide topic, that really matters.
My absolute kudos to Walid SASSI and Dave Poirier! They did a huge amount of work, both in time and materials, to make this book happen.
What I learned:
- Finally got a solid understanding of MCP
- Explored TDD with AI
- Learned how to work with large codebases and modularization correctly
- Better understood what SonarQube is and how it can help
- Saw ADR templates used in practice
For me, it took weeks to go through, but this knowledge will be applied for months (and I’m not saying years only because the whole sector is moving incredibly fast).
Just finished reviewing AI Driven Swift Architecture by Walid SASSI and Dave Poirier, and it’s a seriously well-structured deep dive into modern iOS development with AI in the loop.
What I liked most is how the book progresses, from setting up AI-powered workflows in Xcode, to mastering Swift Concurrency, TDD, Clean Architecture, and even integrating on-device foundation models and agent-based systems. It’s not surface-level content, it actually walks you through building production-grade thinking.
The sections on AI-assisted development, MCP, and architecture modernization stood out for being both practical and forward-looking.
If you’re exploring how AI fits into real-world Swift development (beyond the hype), this one is definitely worth your time. 🚀
Kudos to the authors for such a solid resource, and thanks to Sohini Ghosh & Packt for sharing it for review! 👏
I’ve just finished reading AI Driven Swift Architecture by Walid SASSI and Dave Poirier and I highly recommend it to all iOS developers.
The main idea I took from the book is that AI is not here to replace good developers. By itself, it can be surprisingly useful, but also clueless, incomplete, or too confident. In the hands of a professional developer, though, it becomes a real force multiplier. It helps explore ideas faster, removes repetitive work, and offers alternatives, while the developer still owns the decisions, architecture, quality, and final result.
What I liked most is that the book does not treat AI like magic. It builds automations on top of solid engineering practices: clean architecture, good design principles, tests, TDD, small steps, critical thinking, and proper code review. AI works best when it has these guardrails.
I also appreciated that this is not only a book about AI tools. Along the way, it teaches and reinforces important iOS concepts like Swift concurrency, SwiftUI best practices, refactoring, and TDD. The examples feel practical, especially when AI is used as a thinking partner to reason through trade-offs, edge cases, and design decisions.
The book also feels grounded in real experience. It shows what AI can do well, where it needs supervision, and why developer judgment still matters. For me, that was the biggest takeaway: AI can help us move faster, but it cannot compensate for a lack of solid engineering knowledge.
About the Authors
Walid Sassi
Walid Sassi is a Lead iOS Engineer with over a decade of experience building large-scale mobile applications. He has led critical architectural transformations, including clean architecture adoption and checkout system redesigns in production environments. Walid is also the host of the Swift Academy podcast, where he collaborates with leading experts from the Apple ecosystem worldwide. His work focuses on scalable architectures, developer productivity, and modern iOS engineering practices.
Dave Poirier
Dave Poirier is an expert in iOS development and software security with more than 25 years of experience in the software industry. He specializes in secure application design, reverse engineering, and advanced Apple platform development. Dave brings deep expertise in building resilient and secure systems.
Technical Review
Reviewed for code quality, architectural consistency, and real-world applicability.
Achraf Trabelsi
Achraf Trabelsi is a Technical Leader with over 10 years of experience in iOS development. He has reviewed the technical content of this book to ensure high standards of code quality, architectural consistency, and real-world applicability in production environments.