Everything We’ve Built Is Now Free — And We Finally Solved the Problem of How to Learn Swift
We’ll begin with the conclusion — because this is the part we want every beginner, every graduate, and every future iOS developer on the planet to hear clearly:
Every piece of content we’ve created over the last three years is now completely free.
3DaysOfSwift.com has been fully redesigned. And we believe we’ve solved one of the biggest problems the tech industry has ignored for a decade: How to Learn Swift — properly, clearly, and confidently.
For the first time ever, developers worldwide can learn Swift directly in their own IDE, using real interactive Xcode playgrounds built by real senior iOS developers.
This announcement matters. This could change the way beginners start their journey into iOS development. And it could lift the quality of Swift education across the entire industry.
The Truth: Most “Swift Courses” Don’t Really Teach Swift
If you’ve ever searched the internet for “how to learn Swift,” you already know what happens:
You get UI tutorials.
You get iOS app walkthroughs.
You get projects that jump immediately into screens, lists, tab bars, and APIs.
But almost nobody teaches the Swift language itself. Not properly. Not deeply. Not in a way that builds long-term confidence.
And that is exactly why so many juniors feel lost, overwhelmed, or inferior when they start working. They rush into UIKit or SwiftUI without ever forming a solid foundation in Swift. They try to master everything at once, instead of understanding the core principles that every iOS career is built on.
You cannot build powerful apps until you understand Swift. And nobody was teaching Swift properly. Until now.
We Built the Solution We Wish We Had When We Began
For three years, our team taught graduates aged 20–25 inside real companies — in real training rooms, solving real confusion. We saw first-hand where juniors struggled:
• “What even is an Optional?”
• “Why does this compile? Why doesn’t that?”
• “How do I think in Swift instead of copying code?”
• “Why does everything feel harder than it should?”
So we built the tools to fix it:
Interactive Xcode playgrounds that teach Swift from the inside out
Not theory. Not screenshots. Not surface-level tutorials.
Real code. Real behaviour. Real understanding.
Students open these playgrounds in Xcode — the same tool used by every professional iOS developer — and they learn by writing Swift.
A converted version of Apple’s official Swift book into a fully runnable playground
You don’t need to switch between a website and a book. You don’t need to imagine how the code works. You run it. You see it. You understand it.
Hundreds of examples built from real classroom teaching
Every confusing topic juniors struggled with — we built clarity for. Every behaviour that felt like a “mystery” — we explained through code. Every fundamental concept — we turned into something you can execute, explore, and truly absorb.
This is why 3DaysOfSwift.com is different. This is why we believe it’s the best starting point in the world for anyone learning Swift.
Because the way you learn Swift determines the kind of developer you become.
Why We Made It Free
We tested subscriptions. We tested memberships. We considered selling the tools we had created.
But every time we tried to monetise, we felt the quality of the mission change. We didn’t want to think like a business. We wanted to think like teachers.
We realised something simple and powerful:
The industry needs better beginners — and beginners need better access.
By making everything free, we remove the fear, the hesitation, and the barriers that stop so many talented people from even trying.
And if this announcement inspires even a small shift in how juniors begin learning Swift — if it changes how educators teach it, or how companies onboard new graduates, or how self-taught developers structure their first steps — then we will have done something meaningful.
Learning Swift in Xcode Changes Everything
For the first time:
Any student, from any country, can download Xcode, open one of our playgrounds, and start learning Swift the right way — interactively, visually, and practically.
Learning Swift in Xcode means:
✔ You learn by doing
✔ You understand real behaviour, not memorised theory
✔ You discover patterns naturally
✔ You build intuition for how the language thinks
✔ You gain confidence early
✔ You prepare yourself for the real job market
This is what was missing from every other “Swift” course online.
And now it’s free.
This Could Change How the Tech Industry Trains New Developers
When juniors learn Swift incorrectly, they enter the industry with confusion instead of clarity. They struggle, they rush, they panic — and they waste months trying to correct bad foundations.
But when juniors learn Swift properly, everything changes:
They write cleaner code.
They understand architecture sooner.
They progress faster.
They become valuable more quickly.
They enjoy the process instead of fearing it.
If the next generation of developers begins their learning journey with tools like these — if universities point students here, if bootcamps redirect beginners here, if companies onboard juniors using these materials — the quality of the entire iOS ecosystem could rise.
And it will be free for all of them.Forever.
Everything We’ve Built Is Now Free — And Every Developer on Earth Can Now Learn Swift Properly
So we end where we began:
We have redesigned the website. We have made all our teaching content free. And we believe we’ve created the best starting point in the world for anyone learning Swift — because we finally solved the problem nobody else was solving.
Learn Swift deeply.
Learn it correctly.
Learn it through real code in real Xcode.
Learn it without confusion or overwhelm.
This is a gift to the next generation of developers — to you.
Welcome to the new 3DaysOfSwift.com.
Welcome to the future of learning Swift.
And welcome to the beginning of your career.
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Swift Online Course
Also, as an additional bit of help 3DaysOfSwift has a free online 3-day course written by a successful iOS Developer with almost two decades experience in iOS.
3 Day Online Swift Course (written by senior iOS Developers)
Learn Swift and enrol in our 3-day online course. We have 3 days of instructional videos pair programming with our experienced instructor and Senior iOS Developer who guides you through writing code for each main language feature of Swift. There is extra coding practice too (with no videos so it's faster).
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Swift Study Guide
Also, as an additional bit of help 3DaysOfSwift has the Swift Study Guide (listed below and to download), which is a list of Swift language features each iOS Developer should know before applying for jobs in the tech industry.
List of Swift Language Features
Download the list of topics (Swift language features) you will be required to know in order to pass an interview for an iOS Developer role.
Download
Beginner Topics
Topic 1: The Basics & Foundational Types
Topic 2: Control Flow
Topic 3: Optionals
Topic 5: Classes
Topic 6: Structs
Topic 7: Enums
Topic 8: Value Types & Reference Types
Topic 9: ARC (Automatic Reference Counting)
Mid-level Topics
Topic 10: Extensions
Topic 11: Protocols
Topic 12: Concurrency
Topic 13: Error Handling
Topic 14: Generics
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Swift Career Tips 🚀
Also, as an additional bit of help 3DaysOfSwift has outlined a few career tips that might help as you start your journey as an iOS Developer applying for jobs writing software for Apple devices.
Tips 🚀
Below we have included a few career tips to help get you started as a Junior iOS Developer working in the tech industry.
Focus on learning the Swift language itself. Most team members start their learning journey by studying Xcode and building apps. It's a lot of information and plenty to get confused about. Most of your colleagues will have many gaps in knowledge that affect their every-day anxiety with completing tasks and having it reviewed by others. Instead, why not become the one of the reviewers? Our advice is to stand out in the tech industry and if you want to stand out I would suggest becoming very knowledgable about the language itself; Every single developer will be using it and they will all be competing over Architecture and not the best use of language features. Armed with an incredible understanding of the language you will have the confidence in knowing you can maintain any existing product on the market.
Gather "Career Things" like they were collectibles in a game. This easy-to-remember and rather broad term is a great bit of advice. Too many engineers let the months go by without really taking on board many exciting projects or doing anything that wows any one. This is a terrible idea in every way. Stand out. Be the best at something (like understanding the language). When you change positions and apply to a different company you will have an interview and they'll grill you with many questions. The main bits to know are these; Your CV gets you the interview. You display your worth in the interview.
Your CV gets you the interview: Your short 2 page bullet-pointed CV is simply a list of amazing things you did to improve the team, the social element, the code quality, the income, how you increased user retention, how you added a successful feature and improved the app. You must collect career things.
You display worth in the interview: In the interview you want to fill the hour with saying similar phrases non-stop to "I was able to tweak the values and affect the income of the product simply by reducing the friction of the onboarding and providing a more seamless and pleasant user experience for the user. We now have only a 14% drop compared to most companies that have around 30% typically." Notice how you use "we" when referring to your current company in interviews. To simplify the phrase just-used, "I helped my company move forward. I improved the product, which led to an increased user experience and ultimately more profits for the company. I am a team player and I will improve your company at every opportunity possible."
Become confident in Interviews. You are now a talented Swift engineer who understands the Swift language and has a list of successful results you can pull out of the bag and discuss and any interview. You are constantly and infinitely talking about specifics of the Swift language and how cool and useful it is. You are stacking up one example after another of how you affected the results of the team and the company. You are great at telling these stories. The world is your oyster and you can be confident in your abilities as well as your choices in life.
Move company every 2 years. Ask for a £10,000 increase. When you become bored at your current job because you know too much think about moving, upgrading your job title and doubling your annual salary.
Be driven and be proud that you help keep the world moving by maintaining the digital services we all love and are constantly glued to.
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We are not affiliated with 100 Days of Swift. If you want to learn SwiftUI please visit HackingWithSwift.com.
Apple developer tutorials for SwiftUI can be found here.
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