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Testing Swift + Instabug winners

Find out who won free copies of my latest book.

Paul Hudson       @twostraws

Last week I announced that Instabug were sponsoring the Hacking with Swift knowledge base, and to celebrate they were giving away 50 free copies of my book Testing Swift. All you had to do to win was quote my tweet and answer this question: what's your #1 tip to create a bug-free app?

Well, the winners have now been randomly selected, so if you see your Twitter username below please get in touch with me at to claim your free copy of Testing Swift.

If you didn't win…

Better luck next time! Still, it's not all bad: you can use this link to get a $5 discount on Testing Swift, and even better you can claim a $50 Instabug credit by clicking this link and using the code HackingwithSwift19.

Competition winners

LEARN SWIFTUI FOR FREE I have a massive, free SwiftUI video collection on YouTube teaching you how to build complete apps with SwiftUI – check it out!

Buy Testing Swift Buy Practical iOS 12 Buy Pro Swift Buy Swift Design Patterns Buy Swift Coding Challenges Buy Server-Side Swift (Vapor Edition) Buy Server-Side Swift (Kitura Edition) Buy Hacking with macOS Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with Swift Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

About the author

Paul Hudson is the creator of Hacking with Swift, the most comprehensive series of Swift books in the world. He's also the editor of Swift Developer News, the maintainer of the Swift Knowledge Base, and a speaker at Swift events around the world. If you're curious you can learn more here.

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