🔥 Out now! I just published the first chapter from The Swift AI Playbook, covering Apple's remarkable Foundation Models framework in detail – prompting, streaming, sampling, Generable, custom tools, and more. Make sure and get the early access price! twostraws.gumroad.com/l/swift-ai-p...

Tomorrow I release the first chapter from my new book, the Swift AI Playbook. It has one goal: to make it easier for everyone to integrate AI into their apps. Whether you’re using Foundation Models, MLX, OpenAI, or just Image Playgrounds, this is a book you will NOT want to miss.

Last chance to save 50% in the Hacking with Swift Black Friday sale – get all my books and bundles half price, including my all new book Everything but the Code! www.hackingwithswift.com/offers

Four times in four days I've been asked for advice on working with AI-generated Swift code, so here you go – here's a brief article about dubious code I suggest you watch out for, and what to replace it with instead: www.hackingwithswift.com/articles/281...

It's Black Friday! For the next 24 hours or so I've taken the price of my new game Hacktivate down to just $14.99 – 240 unique challenges that build real-world computer science skills, a one-time purchase across iPhone, iPad, and Mac, and zero tracking ✨ apps.apple.com/gb/app/hackt...

I released a new chapter in my book Everything but the Code, packed with tips for using AI tools for improving App Store text, helping with design, and – yes – even writing some code for you. Even better, the book is half price in my Black Friday sale! 🔥 www.hackingwithswift.com/offers

🔥 The Hacking with Swift Black Friday sale starts today! All my books and bundles are half price, including my all-new book Everything but the Code. www.hackingwithswift.com/offers

I've had a lot of emails about Hacktivate, but my favorite is this: "I am totally obsessed with this game." YES. That's exactly what I want to see – people trying things, learning things, and having fun ✨ apps.apple.com/gb/app/hackt...

The first reviews of my new app are rolling in – I really appreciate everyone who took the time to write something, because it's so important in these early days 🙇‍♂️ My next job: reply to them all! apps.apple.com/gb/app/hackt...

The first Hacktivate update is off to Apple for review, with exciting challenge updates and… well, *less* exciting bug fixes 😅 Get it here: apps.apple.com/gb/app/hackt...

🚀 Hacktivate is live on Product Hunt! Learn real cybersecurity by solving playable hacking missions, from SQL injection to steganography. Check it out here: www.producthunt.com/products/hac...

Today I'm launching my new app, Hacktivate. It teaches real-world computer science skills through 240 "capture the flag" challenges, and works on iPhone, iPad, and Mac with one purchase. I've poured a ton of love into it, and I'd love to hear what you think 🙌 apps.apple.com/gb/app/hackt...

🎉 The final version of Hacktivate has been approved by Apple ahead of launch on Wednesday – all systems go! Pre-order here, and get set for the ultimate cyber-ops challenge: hack servers, crack ciphers, and uncover hidden flags across 240 missions! apps.apple.com/gb/app/hackt...

My new app has now passed 2000 preorders – thank you so much! It’s released in 10 days, and wraps up a range of real-world computing skills in fun “capture the flag” challenges for iPhone, iPad, and Mac. Get it here: apps.apple.com/gb/app/hackt...

Reminder: This Saturday I'm holding 2x 3-hour live streams on improving your Swift and SwiftUI, suitable for all skill levels. It's going to be really packed! Find out more here: www.hackingwithswift.com/articles/279...

A key design goal for my Hacktivate app is for users to build real computer skills while solving challenges. I've just added some SQL-based challenges, all running locally – users need to adjust data to a known hash to be able to log in ✨ Pre-order here: apps.apple.com/gb/app/hackt...

Just one month until I launch my newest app on iPhone, iPad, and Mac. It's called Hacktivate, and it teaches real-world computer science skills using cybersecurity challenges. You can pre-order it here: apps.apple.com/gb/app/hackt...

There are already well over 1100 pre-orders for Hacktivate, in just five days. Thank you! 🙌 The app is such a fun way to learn real computer science skills – carefully graded challenges, with hands-on tutorials too. I think you'll love it 🙂 apps.apple.com/gb/app/hackt...

I just released a second YouTube video about Hacktivate, this time showing how I got it to work well on everything from a Mac Studio display down to iPhone SE, and also showing how the Linux terminal challenges work – my favorite! youtu.be/Z9FXnpT2FaQ

I'm doing my final read through of today's Everything but the Code update, and it's an absolute banger. It's all on App Store optimization – how to really nail your App Store presence to maximize downloads. Should be out in an hour or so! www.hackingwithswift.com/store/everyt...

Over 400 pre-orders already – thank you so much! I'm really looking forward to seeing what you all think of the app. It's such a fun way to hone real-world skills, while also seeing how sneaky I can be with the challenges 😇

My new app is now available for preorder! It has been so much fun to build, and it's even more fun to play – 240 cybersecurity challenges, using real-world skills, and backed by tutorials teaching you everything you need to know ✨ Mac, iPad, and iPhone: apps.apple.com/gb/app/hackt...

Apple is hiring for one of my favorite teams: developer relations! Specifically for UI frameworks, so as well as the excellent base salary and stock grants, you can also expect regular emails from me 😇 But don't let that put you off! Find out more here: jobs.apple.com/en-us/detail...

Advance warning: the price of Everything but the Code is going up on Monday. I said it would go up eventually, so this is just advance notice that it’s now happening 🙂 twostraws.gumroad.com/l/everything...

The next chapter from Everything but the Code is out now, covering metrics and analytics. If you do nothing else but read the "Tools and tradeoffs" section, your app can take a huge step forward *today*. twostraws.gumroad.com/l/everything...

I'm working on a new app, and I just released a new YouTube video showing you what it is – and how I made some of the effects with SwiftUI! youtu.be/FCAagJjdfDM

It's Monday, which means another big content update for Everything but the Code is out! This adds 17,000 words of advice on idea generation and selection, with tips from Christian Selig, Natasha Murashev, Devin Davies, Klemens Strasser, and more – it is *packed*.

The first chapters from my new book are out now! You don’t need more Swift tutorials, you need a *plan*. That's where Everything but the Code comes in: it provides everything you need to go from Xcode to App Store – from coming up with killer ideas, to launch strategy, to breakout success!

Four people already bought the book and I haven't even hit Send on the email yet. Give me a chance, folks! 😂

I'm launching the first chapters from a fantastic new book on Monday, and it's coming together really nicely. Chapters 1 and 2 are done, and chapter 3 is about 95% of the way there – now it's just polishing, polishing, and more polishing 🚀 twostraws.gumroad.com/p/introducin...

My next book is the most important one I've ever written, and the first chapters arrive in one week. It's called Everything but the Code, and it provides everything you need to go from Xcode to App Store – from coming up with killer ideas, to launch strategy, to breakout success!

The Hacking with Swift #WWDC25 sale ends today, but the discount links should carry on working for a little longer. Every year folks email me saying they missed it; don't let that be you! www.hackingwithswift.com/offers

Three weeks ago I was flying back from San Francisco after #WWDC25, and decided to use the flight to start a new app. I just submitted an initial version for TestFlight review – it's early and needs a ton of polish, but I'm really excited about it. It's been so much fun to make!

What's new in SwiftUI for iOS 26? I'm glad you asked! www.hackingwithswift.com/articles/278...

Now that you've seen everything from SwiftUI 26, what is still missing? What are the key pain points you hit? #WWDC25

We’ve just been told that Apple is planning to greatly expand the Apple Developer Forums by adding Discussions – a new way for them to reach out to developers through live streams and Q&A. Coming soon! 🎉

Now that Hacking with Swift IRL is done, I have a little HWS swag leftover – if you see me at #WWDC25 come and say hello and grab some! 🙌

And we’re off! #WWDC25

My #WWDC25 is starting off a little differently from usual.

The first round of applause of the day goes to the Caffè Macs folks who are delivering coffee and treats to folks in line for the big day. (Don’t forget to mute #WWDC25 for the next 48 hours if it’s not your thing!)

Some late-night swag bag packing ahead of CommunityKit! #WWDC25

All checked in and ready to go! #WWDC25

These Apple Park T-shirts are 💯 – instabuy for the rainbow!

Good morning, Cupertino! Time to start beating jet lag with sunshine and coffee ☀️#WWDC25

New on YouTube! 10 Years of Swift: A Decade in Review. Swift launched in 2014, but how did it change in its first ten years? I talk about Swift's journey over a decade, along with my own journey with Swift in that same time. youtu.be/-1z4MYsCIIk

With #WWDC25 around the corner, a lot of folks will be upgrading their projects to a newer iOS deployment target. If you're wondering what new SwiftUI APIs that unlocks for you, I just released something that will help 😎 www.hackingwithswift.com/swiftui

Every year I say to myself, "this will be the year I take it easy during WWDC week." Every year I fail, and this year might be the biggest miss so far 🥲

🗳️ It's almost time for @twostraws.bsky.social and me to record the next #SwiftOverCoffee episode and we want YOUR answers to our open ballot: how do you monetize your apps? How do you set prices? Do you prefer subscriptions or inapp purchases, and how do you implement it all? Let us know!

If you're running a #WWDC25 sale for your app / book, open a pull request on the WWDC repository and tell others about it: github.com/twostraws/wwdc

#WWDC25 is almost here, which means it's time for my annual WWDC sale! Save 50% on all my books and bundles – it's the perfect opportunity to learn something new, expand your skills, or complete your collection! www.hackingwithswift.com/offers