Advanced Networking with Swift
Learn how to build production-ready networking systems in iOS — including caching, retries, JWT authentication, web sockets and real-world architecture used in scalable apps.
What you'll learn
The Gap Most Developers Never Cross
Most iOS developers know how to fetch data from an API.
Very few know how to build systems that actually hold up in production.
This course is designed to bridge that gap.
What This Course Teaches
You’ll learn how to design and implement a production-grade networking layer — the kind used in real-world apps where performance, scalability, and reliability actually matter. Not just “it works on my device,” but systems that handle real users, real traffic, and real edge cases.
What You’ll Learn
We go far beyond basic tutorials and dive into the concepts that separate intermediate developers from senior-level engineers:
• Advanced caching strategies (memory, disk, stale-while-revalidate) to reduce latency and eliminate unnecessary backend load
• Retry systems with exponential backoff, error classification, and safe request handling to prevent failures and duplicate actions
• JWT authentication, token refresh coordination, and secure storage using Keychain and in-memory strategies
• Request adapters, interceptors, logging, and metrics collection to build observable and debuggable systems
• WebSockets and real-time data handling with reconnection logic and stream management
• File uploads and downloads with multipart form data, progress tracking, and background support
• SSL pinning and security best practices to protect your app and users from real-world threats
Build Systems That Scale
You’ll also learn how to structure your networking layer for scalability, keeping your client clean, modular, and maintainable as your app grows.
Real-World Application
This isn’t theory — this is the exact type of system used in real client work, including a $30,000 app build where performance, reliability, and user experience were critical.
The Outcome
By the end of this course, you won’t just know how to call APIs —
you’ll understand how to architect networking systems that:
• scale with your app
• handle failure gracefully
• improve performance and user experience
• and ultimately make you a far more competitive developer in the job market
The Bottom Line
This is the difference between building demo apps… and building production software.
Curriculum
Meet Stephan,
Your Instructor and Mentor
With 1000+ hours of content and 15 courses, Stephan Dowless makes coding approachable and fun. As a former Meta engineer, he combines real-world experience with clear, engaging teaching to help you succeed in tech.
Stephan is a seasoned iOS developer with over a decade of experience in the tech industry. His expertise spans across building scalable, production-ready applications that are designed to handle millions of users, incorporating advanced features, and optimizing performance.
Throughout his career, Stephan has been passionate about not only writing impeccable code but also about mentoring and elevating fellow developers. This passion led him to create the Pro Plus series, where he distills his extensive industry knowledge and real-world experience into comprehensive, high-quality courses.
Unlock Your Potential with Membership
Just Want This course?
One time payment, own this course forever.
Success Stories
Our students are getting hired at top companies. We can help you get there too.
"I cannot express enough how grateful I am for the incredible journey AppStuff has taken me on in my pursuit of becoming an iOS engineer. As a student aspiring to break into the world of app development, I was initially overwhelmed by the complexity of iOS development. That's when I stumbled upon AppStuff, and it truly transformed my learning experience."
“I’ve worked with a lot of codebases over the years, and Stephan’s immediately stood out. The moment I dove into his Messenger app, everything just clicked. The structure, the clarity, the architecture — it all spoke to me.
Retrofitting it to my own backend built with Vapor and Postgres was surprisingly seamless. I don’t say this lightly: I’m picky about code quality, and Stephan’s work is among the best I’ve ever seen.
His production-ready Pro Plus templates set a new standard for iOS development — they’re more than learning tools, they’re professional-grade systems you can actually build on.”
Stephan Dowless consistently puts out some of the most in-depth and well-rounded iOS tutorials I’ve ever come across. His courses don’t just scratch the surface—they fully cover what they teach, which is something I really appreciate in a landscape where many tutorials leave out key details.
What sets Stephan apart even more is how he continues to evolve his courses year after year, always staying up to date with the latest coding standards and best practices. You can tell he genuinely cares about the quality of his content and the success of his students.
If you’re serious about mastering iOS development, I couldn’t recommend his courses more.
"Today, I proudly call myself an iOS engineer, and I owe a significant part of my success to AppStuff. With their guidance and resources, I not only gained the knowledge and skills but also the confidence to pursue a career in iOS development. I am now equipped to tackle challenging projects and contribute meaningfully to the world of mobile app development."
"If you're a student with dreams of becoming an iOS engineer, I highly recommend AppStuff as your go-to resource. Trust me, it's the perfect launchpad for your iOS development journey. Thank you, AppStuff, for making my dream a reality!"
Common Questions, Answered
Browse our FAQs for information about our courses, memberships, and app development services.
All courses are available with the monthly and yearly membership plan, except for Pro Plus courses. Pro Plus courses are only available with Lifetime membership. Monthly/yearly members receive 15% off.
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.
If you purchased the course, how does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
If you gained access to the course through our membership, access is only valid as long as your membership is active.
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.