3DaysOfSwift.com Redesigned — Our Content is Now Free
We’ve Redesigned 3DaysOfSwift.com — And Made Every Piece of Content Free
Over the past three years, our team at 3DaysOfSwift.com has been quietly building something unusual in the world of iOS development education. We weren’t creating another course for hobbyists. We weren’t recycling surface-level tutorials. We were teaching real Swift to real junior developers already working inside tech companies — graduates aged 20–25.
During that time, we created a vast collection of Xcode playgrounds, interactive lessons, teaching utilities, software examples, Swift topic explorations, architectural walkthroughs, syntax demos, and entire learning packages built directly from the confusion we saw in the classroom. Every time a junior struggled with a topic like optionals, ownership, generics, architecture, async, or protocols, we wrote new teaching tools.
Every time a developer lacked confidence in writing real Swift, we built examples they could execute in Xcode to understand the behaviour properly. And when we realised that Apple’s official Swift book was incredibly helpful but difficult to use while learning, we converted the entire book into a beautifully formatted, fully executable Xcode playground — making the text itself come alive through Swift and Markdown.
These materials weren’t created in a vacuum. They were shaped directly inside professional teaching settings, with real juniors asking real questions — and real senior iOS developers guiding them, page by page, line by line.
And today, we want to make a clear announcement:
Everything we have built is now free. Completely free. Forever.
Why? Because our passion is teaching — not monetising.
We experimented with the idea of free memberships followed by a monthly subscription. We explored ways to support the project financially by offering downloads, practice materials, or extra lessons behind a paywall. But every time we moved in that direction, something felt wrong. Not morally wrong — just misaligned with the spirit of how this whole project began.
We never set out to build a subscription business.We set out to help juniors become capable, confident, high-quality Swift developers.
Charging for individual lessons or downloads would have changed the way we thought, the way we built, the way we published, and the way we designed the experience. And we didn’t want the pressure of monetisation to dilute the honesty, clarity, and generosity that defined our teaching from the start.
We are simply a group of senior iOS developers who were writing code back when the very first smartphones appeared — when a small team could genuinely change how millions of people interacted with their devices. That era taught us something important:
Quality matters.Character matters.And the way developers are trained shapes the industry for years to come.
Today, we see many juniors frustrated, confused, overwhelmed, or misdirected — not because they lack potential, but because they were taught to chase everything at once. They tried to learn all of iOS development in a single sprint, instead of grounding themselves in the one skill that underpins their entire career:
Swift. Real Swift. Deep Swift.
And that’s where we want to help.
So, what’s new at 3DaysOfSwift.com?
A complete redesign
We’ve rebuilt the entire website from the ground up. Cleaner navigation, better structure, clearer lessons, better typography, and a layout that puts learning front and centre. No memberships. No login required. No subscriptions. Just learning.
All content is free
The full set of Xcode playgrounds, downloadable Swift tools, code examples, guided lessons, teaching utilities, our Swift-book-turned-playground, our game-based learning packages — everything we’ve produced over the last three years is now open to the public.
And not only free — actively expanding. We will continue adding to the library because teaching juniors is not something we have finished doing. It’s something we love doing.
Our future: short, optional, one-off paid events
We still need to pay for hosting, bandwidth, tools, and development time. Instead of subscriptions, we will occasionally run short, single-session live events: advanced architecture workshops, code-review masterclasses, “fix-this-code” sessions, or specialised Swift deep dives.
These will be optional, affordable, and focused on topics that genuinely change careers — like architecture, which alone can raise a developer’s annual salary by tens of thousands of pounds.
Everything else remains free. Forever.
The world has never been a better place to learn Swift
With the rise of AI, juniors today are stepping into the industry with more support than any previous generation. A junior who understands Swift well — truly understands it — is unstoppable. And we believe this generation of learners deserves clarity, simple explanations, hands-on experience, and direct access to the exact tools we used inside professional training rooms.
That is our mission.That is the purpose of 3DaysOfSwift.com.And that is why we have decided to give everything away.
Thank you to everyone who has supported us so far.Thank you to the juniors who asked difficult questions and pushed us to create clearer lessons.And thank you to the community for believing in quality education.
This is only the beginning.We’re excited to keep building, keep teaching, and keep giving back to the next wave of iOS developers.
Welcome to the new 3DaysOfSwift.com — where real Swift learning is free for everyone.
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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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