Marin Todorov joins John to talk about bridging the gap between UIKit, Combine and SwiftUI, how to design intuitive and robust APIs, and how the developer community can augment Apple’s SDKs through open source.

Benedikt Terhechte and Bas Broek join John to dive into the new APIs and features in iOS 13 and iPadOS, as well as Swift 5.1 — how it powers SwiftUI, and if it would be possible to backport parts of SwiftUI to earlier iOS versions. Also, text editors, new iPhone and iPad UI conventions, and much more.

Longtime Apple platforms developer Brent Simmons joins John to discuss how SwiftUI is ushering in a new era for Apple’s developer tools, and how we as third party developers can prepare for it. Also, Mac development, lots of tips for writing efficient code, and how Swift is adopting more dynamic programming features.

Casey Liss joins John to talk about Apple’s newly announced Combine framework for reactive programming, how it compares to existing tools like RxSwift, and different strategies for adopting it. Also, unit testing, life as an indie developer, and much more.

Kaya Thomas joins John to talk about Apple’s various accessibility technologies and how SwiftUI is taking things to a whole new level. Also, how UI testing and accessibility are closely related, and what makes declarative UI development so powerful.

Chris Lattner, creator of Swift, joins John on this 50th episode of the show — to discuss the current state of Swift and how it came to be, as well as to speculate about what the future of the language and its ecosystem might look like.

It’s time for the 2019 Swift by Sundell WWDC special, featuring PCalc creator James Thomson — who, with his over 25 years of experience developing apps for Apple’s platforms, joins John to discuss SwiftUI, Catalyst, and the other exciting tools and frameworks introduced at this year’s WWDC.

Automation enthusiast and Scriptable developer Simon Støvring joins John to discuss automation, scripting, and building tools. Also, app modularity, frameworks, and what it would take to bring automation on Apple’s platforms to the next level.

iOS developer and YouTuber Mayuko Inoue joins John to discuss team work and how a solid code structure can make teams more productive. Other topics include goal setting, how to grow as an engineer, and contributing to open source.

Michael Ilseman, developer on the Swift team at Apple, joins John to go on a deep dive into the String type, its implementation, and its related APIs. Topics range from the way Swift’s String API is designed, to its underlying complexities, and practical performance tips.

Chris Eidhof and Matt Gallagher join John to discuss app architecture, RxSwift and Functional Reactive Programming, and how to decide what patterns, frameworks, and concepts to adopt when architecting and building an app.

Janina Kutyn, former Apple Music developer and now an iOS developer in Amsterdam, joins John for a UI development special! Topics include various techniques for building UIs and layouts, measuring and fixing performance problems, and supporting different screen sizes and devices.

Dave DeLong, former Apple developer evangelist and now iOS architect and instructor, joins John to talk about handling dates in code, MVC & app architecture, Mac development, and to tell stories of how WWDC is put together.

Ted Kremenek, manager of the Languages and Runtimes team at Apple, joins John to talk about Swift 5 — focusing on ABI stability and what it means for the future of the language, how the underpinnings of String have been improved in this release, how Apple is using Swift internally, and much more.

Dave Verwer joins John to take a look behind the scenes of the iOS Dev Weekly newsletter, to talk about working as an indie and how to increase your chances of success as an indie creator or developer, juggling multiple projects, as well as iOS development trends.

Ben Sandofsky, the developer behind the camera app Halide, joins John for this season 3 premiere of the show — to talk about designer/developer collaboration, what goes into building a camera app, iOS app architecture, handling dependencies, minimizing an app’s binary size, and much more.

JP Simard and Jesse Squires - the hosts of Swift Unwrapped - join John for this year's Holiday Special. Topics include ways that Swift has evolved during the year, what's coming up in Swift 5, maintaining open source projects, and continuing the tradition of sending wishes to Xcode Santa.

Kristina Fox, iOS and watchOS developer at Intuit, joins John to talk about Apple Watch development, building UI using storyboards vs in code, growing into a senior developer, and how to use change as a learning opportunity.

Ellen Shapiro joins John to talk about all sorts of automated testing - unit tests, integration tests, UI test, you name it! The two also discuss Ellen's recent adventures into Kotlin and whether Kotlin Native could become a nice cross-platform solution for mobile apps.

Max Howell, creator of Homebrew and PromiseKit, joins John to talk about package manager design, asynchronous programming, interview processes, and also to tell some stories of how the Swift Package Manager was born.