Dramatically Improve iOS Developer Interview Success

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Dramatically Improve iOS Developer Interview Success

This announcement is especially relevant to the people who keep the tech industry moving: recruiters, talent partners, and hiring managers.

We’re proud to share that:

Every Swift learning resource on 3DaysOfSwift.com is now completely free. Every playground, every example, every exercise, and every learning package is open and accessible — permanently.

And while this is valuable to beginners and students, it may be most valuable to recruiters placing junior iOS developers into their first roles.

Because there is a problem in the iOS hiring pipeline that recruiters see every day — and this is our attempt to solve it for you.

🔍 The Challenge Recruiters Face When Placing Junior iOS Developers

If you’ve been recruiting in iOS for any length of time, you already know the recurring pattern:

A candidate has “just enough” experience to apply.
They appear excited, teachable, and motivated.
On paper, they look ready.
The first screening goes well.
But during the technical interview… they freeze.
Or they forget the fundamentals.
Or they struggle to write Swift confidently.
And the hiring manager declines them.

Not because they lack potential. Not because they’re not smart. But because their Swift fundamentals are shaky, and the pressure of the interview exposes those gaps instantly.

Recruiters see it week after week. Candidates who are almost there — but not quite ready.

And this is where 3DaysOfSwift.com comes in.

🧠 The Real Problem: Most Candidates Were Never Taught Swift Properly

Junior developers usually learn Swift from:

fast-paced bootcamps
UI-driven tutorials
YouTube videos
SwiftUI “build this app in 1 hour” content
courses that teach iOS development instead of Swift

These resources help them get started, but they do not build the kind of language fluency needed for technical interviews.

Most candidates can build a simple app.But many cannot:

explain Optionals confidently
reason about value vs. reference types
demonstrate protocol-oriented thinking
discuss memory behaviour
handle generics
write clean Swift syntax on the spot
solve small algorithmic tasks under pressure

These are the exact areas where interviews break down.

Candidates don’t fail because they’re unqualified. They fail because they were never taught the Swift language deeply enough to succeed.

🚀 How 3DaysOfSwift.com Helps Recruiters Directly

We’ve spent three years teaching new iOS developers in formal graduate programs. We watched where they struggled, where they froze in interviews, and where they lacked confidence. So we built the resources they needed — and now they’re free.

3DaysOfSwift.com is:

✔ Real interview preparation

The course covers fundamentals that appear in almost every iOS interview. Candidates who complete it write cleaner code and explain Swift more clearly.

✔ Designed by senior iOS developers who built the hiring process

We know what companies look for. We’ve been in those rooms. We’ve interviewed those juniors.

✔ Deep language training instead of UI tutorials

Candidates don’t just learn how to write Swift. They learn why Swift behaves the way it does.

✔ Interactive learning inside Xcode

Candidates practice in the same environment they’ll use on the job.

✔ Used in real-world training for junior developers

These resources were refined over hundreds of hours of real teaching with 20–25 year old graduates entering their first jobs.

✔ 100% free — permanently

There are no fees, no logins, and no subscriptions. Recruiters can recommend it freely with zero cost or risk.

💬 What We Say (Half-Jokingly) in the Industry

Among senior iOS developers, we often joke:

“If each candidate spent two weeks on the 3DaysOfSwift training — with all the extra coding practice — they’d pass every junior interview.”

It’s funny because it’s true.

Candidates who complete the course:

understand Swift deeply
write code confidently
recognise interview patterns
avoid common mistakes
communicate their thinking clearly

It gives them exactly what they lack — the confidence and fluency they need to succeed.

💼 Why Recruiters Benefit Directly

This is the part that makes 3DaysOfSwift.com genuinely valuable for recruitment teams:

📈 Stronger, better-prepared candidates

Your candidate’s performance improves dramatically after completing our free training.

🤝 Higher interview success rates

More passes → more offers → more placements.

💷 Higher commission for your agency

Recruiters typically earn 11%–18% of a candidate’s annual salary. Better-prepared candidates = more placement fees.

⏱️ Less time wasted

Fewer failed interviews.Fewer resets. A smoother recruitment cycle.

🌍 Zero cost

You can recommend the course to every candidate you meet. They get better.You get better results. Everyone wins.

This is the rare case where:

recruiters win, candidates win, hiring managers win, and the industry wins.

🔧 How Recruiters Can Use This Today

You can begin recommending 3DaysOfSwift.com to:

junior iOS developers applying for their first roles
graduates entering the job market
career changers transitioning into iOS
candidates who “almost passed” a recent interview
self-taught developers with gaps in their fundamentals

Encourage them to complete:

The core 3-day Swift training
All the extra coding practice
The deeper playground exercises

Even two weeks of consistent practice can transform a candidate’s interview performance.

Every Resource on 3DaysOfSwift.com Is Now Free — And It Can Raise the Standard of Junior iOS Hiring

We believe this can genuinely shift the way new developers prepare for interviews. And we believe it can help recruiters place more candidates into real, meaningful roles.

So we’ll end exactly where we began:

Every resource on 3DaysOfSwift.com is free — permanently. Use it. Share it. Give it to your candidates. It will make them stronger, more confident, and more successful in their interviews.

And for recruiters?

It can elevate your entire pipeline and increase your placement rates.

Everyone wins.

And the industry moves forward.

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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).

View Course

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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 4: Functions & Closures

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.
1. 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.
2. 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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