Every Resource on 3DaysOfSwift.com Is Now Free — And Here’s How Recruiters Should Be Vetting iOS Candidates in 2026
Before anything else, let’s address the reality every tech recruiter now faces:
The rise of AI has made it easier for candidates to apply for roles — but not easier for them to perform well in interviews.
More candidates. Lower average quality. Higher scrutiny from hiring managers. And greater pressure on you, the recruiter, to avoid presenting underprepared developers.
Your reputation depends on the quality of the candidates you put forward. Your commission depends on their ability to perform in interviews. And your clients judge you based on the technical level of the people you recommend.
In this new environment, recruiters need a smarter, consistent, reliable vetting process before submitting any iOS developer to a client.
3DaysOfSwift.com can help with that — and every resource we offer is now completely free.
But first, here are the steps recruiters should be following in 2025 when vetting junior iOS developers.
Step 1: Confirm the Candidate’s Swift Literacy — Not Their UI Experience
Many juniors show polished portfolios built with SwiftUI or UIKit, but very few demonstrate deep understanding of the Swift language itself. This is where interviews break down.
Candidates often:
cannot reason about Optionals
freeze when asked to write Swift under pressure
fail to explain structs vs classes
struggle with protocols, generics, or memory behaviour
depend heavily on tutorials or AI
break down when asked to solve small logic tasks
Before you send a candidate to a client, you need to confirm they understand Swift, not just “app building.” Ask them simple language questions first — not UI questions.
Step 2: Require Every Candidate to Complete a Structured Swift Review
This is where 3DaysOfSwift.com becomes an invaluable partner to recruiters worldwide.
Your candidates do not need a paid course. They do not need expensive coaching. They do not need a multi-week bootcamp.
They simply need to work through a structured, interactive set of Swift fundamentals — the exact fundamentals they will be asked about in technical interviews.
3DaysOfSwift.com provides:
interactive Xcode playgrounds
a fully runnable version of the Swift book
language-focused examples
deep foundational lessons
exercises tailored to junior interview expectations
All of it is free. All of it is practical. And all of it dramatically improves interview performance.
Step 3: Have the Candidate Demonstrate Swift Competence in Xcode
After completing the course, the candidate should send you:
a short recorded screen video solving a small Swift task in Xcode
or a zipped Xcode playground demonstrating their understanding
Why this matters:
Candidates who cannot write Swift in Xcode will be immediately rejected during interviews. This simple vetting step protects your reputation and ensures you only send clients candidates who are genuinely interview-ready.
Step 4: Brief the Candidate on Common Interview Patterns
Your candidate should be able to:
talk through their thinking
explain language behaviours
describe struct vs class differences
walk through code calmly
discuss a small project
explain why something compiles or does not
3DaysOfSwift.com’s structured lessons naturally prepare candidates for these patterns because they are designed by senior iOS developers who have conducted hundreds of real interviews.
When candidates complete the course, they speak more clearly, write more confidently, and present more convincingly.
Step 5: Only Then Present Them to the Client
When you follow these steps:
your candidates will be more confident
your clients will be more impressed
your placement success rate will increase
your business reputation will grow
your commission pipeline will strengthen
Recruiters typically earn 11%–18% of a placed candidate’s annual salary — meaning strengthening each candidate’s interview performance directly increases your earnings.
Adding a clear vetting process is not extra work. It is a protective layer that guarantees higher placement outcomes.
Why 3DaysOfSwift.com Is the Perfect Vetting Tool
For three years, our team trained 20–25 year old developers inside corporate graduate programs. We saw exactly where they struggled, where interviews broke down, and what they needed to succeed.
So we built tools to fix the problem:
language-first training
interactive Xcode learning
interview-ready examples
exercises refined through real classrooms
a complete Swift foundation
clarity where other courses cause confusion
Now, all of it is free — because the Swift ecosystem needs better beginners, and recruiters need better candidates.
This is not a temporary promotion. This is a permanent industry contribution.
And it is available to every recruiter in the world.
The Recruiter’s Advantage: Stronger Candidates, Higher Placement Success
We understand the recruiter’s reality:
When you put forward an underprepared candidate, your reputation suffers.
When your candidate performs poorly, the client’s trust drops.
When your candidate freezes in an interview, your placement rate collapses.
But when your candidate is strong — genuinely strong — you win.
Strong candidates:
pass interviews
impress hiring managers
get offers
stay longer in their roles
generate positive feedback
encourage clients to work with you again
This is the future we want to help create:a recruitment pipeline full of candidates who truly understand Swift, not just SwiftUI tutorials.
Every Resource on 3DaysOfSwift.com Is Now Free — And We Want to Partner With Recruiters Globally
We’ll conclude with the essential message:
Every resource we’ve created is free — permanently. We invite recruiters from around the world to use 3DaysOfSwift.com as part of their candidate vetting process. Doing so will strengthen your pipeline, increase your placement rate, and protect your reputation.
This is not hypothetical. This is not marketing.
This is based on years of real classroom experience and real developer growth.
In the new hiring landscape shaped by AI and increasingly inconsistent skill levels, recruiters need reliable ways to filter and prepare candidates.
We built 3DaysOfSwift.com to be exactly that solution.
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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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