Every Resource on 3DaysOfSwift.com Is Now Free
We’ll begin with the announcement itself, because it is the heart of everything that follows:
Every Swift learning resource we have created over the last three years is now completely free.3DaysOfSwift.com has been rebuilt from the ground up, and every lesson, every playground, every example, and every educational tool is now openly accessible to learners around the world.
No memberships. No subscriptions. No gated downloads. No hidden “premium” tier.
This is a full, permanent commitment: all our resources are free — and will remain free.
Why We Made Everything Free
The decision was not a marketing strategy. It wasn’t a promotional experiment. It wasn’t a growth tactic.
It came from something simpler:a belief that the industry needs better beginners — and beginners need better access.
For three years, we taught real junior developers, aged 20–25, inside graduate programs at established tech companies. These young developers were intelligent, motivated, passionate — yet they often arrived without a solid understanding of Swift. They had followed tutorials, watched courses, built simple apps… but they lacked the foundation needed to feel confident in real engineering environments.
Why? Because most “Swift courses” do not actually teach Swift.They teach iOS development disguised as Swift.
They jump straight into UI components, app layouts, lists, gestures, animations — and skip the hard work of explaining the Swift language itself. The problem is subtle, but it affects thousands of new developers every year.
We saw the consequences in front of us:
Juniors confused by basic language features
Developers who could build screens, but not explain syntax
Beginners overwhelmed because they lacked foundations
Talented graduates experiencing imposter syndrome unnecessarily
This wasn’t their fault — it was the result of how the industry teaches them.
We wanted to change that.
Our Goal: Fix “How to Learn Swift”
Instead of telling students to watch more tutorials, we built resources designed specifically to teach Swift first, iOS second.
We created:
✔ Fully interactive Xcode playgrounds
Students learn inside the same professional environment used by working iOS engineers — writing code, experimenting, observing behaviour directly.
✔ A runnable, interactive version of Apple’s official Swift book
No switching between a website, a book, and a project.The text, code, and results live side-by-side inside Xcode.
✔ Playgrounds that explain confusing behaviours clearly
Optionals, protocols, enums, generics, reference semantics, memory behaviour, async/await — each transformed into simple, runnable examples.
✔ Real teaching tools used in graduate training rooms
Everything was refined through hundreds of teaching sessions with real juniors who struggled, asked questions, and tried to build their understanding step by step.
These weren’t made for marketing.They were made for teaching — the real, difficult, human kind of teaching.
Why Free Matters
When we experimented with subscriptions, it became clear that monetisation subtly changed how we worked:
It slowed the speed of publishing.
It made us think like a business, not educators.
It created a psychological barrier for beginners — especially those who lacked confidence or financial freedom.
But when we removed those barriers, the mission became clearer:
If the industry wants better developers, the foundations must be open, accessible, and free.
And if we want to influence how new developers learn Swift, the best way is to ensure that anyone in the world can begin learning without cost.
This is not a temporary decision.It is the beginning of a new era for 3DaysOfSwift.com.
Learning Swift in Xcode Changes Everything
There is a meaningful difference between reading about Swift…and running Swift.
By learning inside Xcode, beginners can:
See real behaviours
Experiment freely
Build intuition
Gain confidence early
Understand Swift as a language, not as a side note to iOS development
This approach is fundamentally different from typical online courses — and we believe it is the correct way to learn Swift.
Not because it’s more impressive.But because it works.
A Better Starting Point for the World’s Beginners
When a new developer searches “How to learn Swift”, they deserve a starting point that teaches the language properly. They deserve clarity, structure, and an environment that encourages understanding rather than overwhelm.
We believe 3DaysOfSwift.com can be that starting point.
Not because we claim to be the largest platform.Not because we offer the most videos or the longest curriculum.But because we focus on the one thing that matters most:
Helping beginners learn Swift correctly.
If that helps students enter the industry with more confidence…If it helps companies onboard juniors more effectively…If it raises the overall quality of Swift developers worldwide…Then this transition will have been worth it.
Every Resource on 3DaysOfSwift.com Is Now Free
We’ll close where we began: Every resource is free.The website has been redesigned.And we believe this approach provides the best starting point available today for anyone learning Swift.
Swift is a powerful, elegant, expressive language — and learning it should not require financial barriers, unnecessary confusion, or incomplete foundations.
We hope this step makes a difference.We hope it supports the next generation of iOS developers.And we hope it marks the beginning of a new chapter for anyone searching for a clear, confident way to learn Swift.
Welcome to the new 3DaysOfSwift.com.
Let’s build something meaningful together. Start Now.
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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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