We’ve Made Every Resource on 3DaysOfSwift.com Free — And We Believe We’ve Finally Solved “How to Learn Swift”
I will begin with the conclusion, because it reflects the essence of this announcement:
Every Swift learning resource we have created over the past three years is now completely free.
3DaysOfSwift.com has been redesigned from the ground up. And we believe we have solved one of the most persistent problems in the iOS development world: How to learn Swift properly.
For the first time, any developer can learn Swift directly within their own IDE using fully interactive Xcode playgrounds designed by experienced senior iOS engineers.
This decision has the potential to influence how new developers begin their careers — and perhaps even shift the standards of Swift education across the industry.
The Unspoken Problem: Most “Swift Courses” Do Not Teach Swift
If you search for “How to learn Swift” today, you will find an overwhelming number of courses, bootcamps, and tutorials that claim to teach the language. Yet the vast majority of them begin not with Swift itself, but with iOS development — user interfaces, screens, layouts, app structure, visual components.
In practice, this means that many beginners enter the industry having learned:
how to build interfaces
how to follow recipes
how to assemble features
…but not how Swift actually works.
This creates confusion, slows progress, and leaves juniors feeling underprepared when they arrive in their first engineering roles. We saw this repeatedly while teaching graduates in corporate training programs. They were talented and motivated, but they had been taught the wrong starting point.
The industry has, unintentionally, created a generation of developers who know how to make an app, but don’t fully understand the language powering it.
This is the gap we aimed to close.
What We Built — And Why It Works
Over the last three years, our team of senior iOS engineers created a library of hands-on learning materials designed specifically to teach Swift from the inside out. These were not theoretical assets or online videos — they were tools refined in live teaching settings with real junior developers aged 20–25 who were beginning their careers.
These resources include:
1. Interactive Swift playgrounds for Xcode
Students learn inside the same environment professionals use. They write Swift, run Swift, observe Swift, and understand Swift through direct interaction with the language.
2. A fully transformed version of Apple’s official Swift book
We converted the book into a runnable Xcode playground, merging text, examples, and executable code into a single unified learning experience.
3. Real software examples and teaching utilities
Every concept juniors struggled with — optionals, enums, value vs. reference semantics, protocols, generics, concurrency — was rewritten into clear, concise examples that could be tested instantly inside Xcode.
4. Topic-focused learning packages
We produced deep-dive materials for fundamentals, architecture, syntax, and practical application — each built to reduce confusion and increase long-term understanding.
These materials worked because they reflected real questions from real learners. They were not abstract or idealised. They were forged in actual classrooms with new developers trying to understand how Swift thinks.
Why We Decided to Make Everything Free
At various points, we explored monetisation strategies. We trialled free memberships with paid extensions, subscription tiers, and downloadable products. All of these options were viable from a business perspective — yet none of them felt right.
We realised that placing a financial barrier between beginners and foundational knowledge would undermine the mission we cared about most:
to improve the quality of junior iOS developers entering the industry.
Making the material free means:
students anywhere in the world can begin learning Swift without hesitation
universities can direct graduates to a reliable starting point
self-taught developers gain access to high-quality training without cost
companies can onboard juniors more effectively
the global standard of Swift education can improve organically
This was not simply a business decision. It was an educational one.
Why Learning Swift in Xcode Is a Breakthrough
For the first time, any learner can:
open Xcode
import one of our playgrounds
and begin learning Swift by writing code, not consuming content
This is fundamentally different from the traditional “video-first” or “UI-first” approach offered by most online courses.
Learning Swift in Xcode builds:
deeper understanding
stronger intuition
faster problem-solving abilities
real-world readiness
confidence that scales into mid-level roles
This is the correct starting point for every aspiring iOS developer. It always has been.
The industry simply lacked accessible materials that made this approach possible — until now.
A Free Resource That Could Influence the Future of iOS Education
If beginners worldwide start their journeys by learning Swift properly — before jumping into UI frameworks — the quality of future developers will rise significantly. They will write more expressive code, make fewer mistakes, and advance more quickly in their roles.
For universities, companies, and self-taught learners, this could represent a meaningful shift. A clearer starting point.A more stable foundation.A healthier pipeline of junior developers entering the field.
We believe this is a positive step for the entire iOS ecosystem.
Every Resource on 3DaysOfSwift.com Is Now Free — Because This Is How Swift Should Be Learned
We end where we began:
We have redesigned the website.We have made every resource free.And we believe we’ve created one of the most effective starting points available today for anyone searching “How to learn Swift.”
Learn Swift deeply. Learn it correctly. Learn it interactively inside your own IDE. And do it without financial barriers or unnecessary complexity.
If this helps even a small number of new developers begin their careers with greater clarity and confidence, then this transition will have been worth it.
Welcome to the new 3DaysOfSwift.com.
Welcome to a better starting point for learning Swift.
And welcome to the beginning of your journey into iOS development.
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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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