We Made Every Resource on 3DaysOfSwift.com Free — And We Believe We’ve Finally Solved “How to Learn Swift”
Yes — let's begin with the conclusion.
Every Swift learning resource we have built over the past three years is now completely free. 3DaysOfSwift.com has been fully redesigned. And for the first time, any beginner can learn Swift directly inside their own IDE using interactive Xcode playgrounds created by senior iOS developers.
This announcement may genuinely influence how the next generation of developers begins learning Swift — and how the industry trains them.
🚨 The Hidden Problem:
Most “Swift Courses” Don’t Actually Teach Swift
Search the internet for “How to learn Swift”, and you’ll discover a surprising truth:
Most courses skip the language and jump straight into iOS development.
They begin with:
SwiftUI views
UIKit screens
navigation stacks
layout tutorials
app-building recipes
All useful — but all premature if the student doesn’t yet understand the language underneath.
The result?
New developers learn to build interfaces… without understanding the code that powers them.
This is the silent problem behind so many overwhelmed juniors entering the industry.
And it’s the problem we decided to solve.
🎓 What We Saw While Teaching Young Developers
Over the last three years, we taught hundreds of graduates aged 20–25 inside corporate training programs. They were smart, capable, and motivated — but consistently underprepared in one crucial area:
They had never been taught Swift deeply, clearly, or interactively.
They knew how to assemble features. They knew how to follow tutorials. But they didn't understand:
why their code behaved the way it did
how Swift actually thinks
how to reason about the language
how to write expressive, elegant code
how to debug effectively
They were taught results, not foundations.
So we built the foundations they were missing.
🛠️ What We Created — And Why It Works
Everything on 3DaysOfSwift.com was originally built to teach real junior developers in real professional settings.
✔ Full interactive Xcode playgrounds
Every concept becomes something students can see, run, and experiment with.
✔ A fully executable version of Apple’s official Swift book
The theory, examples, and runnable code exist in one place.
✔ Teaching tools for the confusing parts of Swift
Generics, protocols, optionals, memory behaviour, enums, value semantics, concurrency — all rewritten into clear playgrounds.
✔ Real-world examples shaped by real student struggles
Every question a junior asked became a new piece of learning material.
These resources don’t rely on videos, passive watching, or memorising patterns. They rely on active, exploratory learning in Xcode — the way Swift was meant to be understood.
💡 Why We Decided to Make Everything Free
We tested subscriptions. We tested memberships.We tested pricing models.
But we realised something essential:
If we want to improve the industry, we must remove every barrier for beginners.
When Swift fundamentals become accessible:
students learn with confidence
universities gain a reliable starting point
bootcamps can improve their curriculum
companies can onboard juniors more effectively
the entire iOS ecosystem benefits
Making it free wasn’t a business strategy. It was the correct decision.
And the more we leaned into that realisation, the clearer our mission became.
🖥️ Learning Swift Inside Xcode Changes Everything
For the first time, any person in the world can:
Download Xcode
Open one of our playgrounds
And start learning Swift through real code
No theory without execution. No abstraction without experimentation. No “mysteries” that become roadblocks later.
Why this matters:
Swift is best learned through interaction, not instruction. Seeing the language behave in real time builds intuition faster than any video or article can.
This approach creates:
stronger fundamentals
better decision-making
cleaner code
faster growth
healthier engineering culture
This is not simply a new collection of tutorials — it is a new starting point.
🌍 A Small Change That Could Influence an Entire Industry
If beginners around the world begin with a stronger foundation in Swift, the effects ripple outward:
Students become more confident. Juniors become more capable. Companies become more supportive. And the quality of iOS development rises.
We’re not claiming to reinvent education — but we are offering a path that was missing for far too long.
A clear, structured, free way to learn Swift properly.
And that matters.
Every Resource on 3DaysOfSwift.com Is Now Free
Because This Is How Swift Should Be Learned
We’ll finish where we began:
We rebuilt the website. We removed every barrier. And we believe 3DaysOfSwift.com is now one of the best starting points in the world for anyone who searches “How to learn Swift.”
Learn Swift interactively. Learn it deeply. Learn it in Xcode, the same tool professionals use. And learn it without cost.
If this helps even a handful of new developers begin their careers with clarity and confidence, this entire transformation will have been worth it.
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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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