iOS Lead Essentials
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THE iOS LEAD ESSENTIALS PROGRAM

The iOS Lead Essentials is an online program meticulously thought out for iOS developers who want to become black-belts and be part of the highest-paid iOS devs in the world.

A black-belt iOS developer denotes a senior developer with an expert level of technical and practical skills who can confidently deliver iOS apps they're proud of and even turn messy codebases into successful projects.

As a black-belt developer, you're a reference in the industry and recognized for your abilities. So you can choose the projects you work on worldwide, lead and help other developers grow, and you get paid exceptionally well.

In the iOS Lead Essentials program, you learn a straightforward, step-by-step methodology to become a black-belt senior iOS developer by practicing with experienced black-belt developers who achieved it and can teach you the way - just like in martial arts.

The methodology is designed and taught by Caio Zullo and Mike Apostolakis through an online training program organized into a few cohorts of developers a year.

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ESSENTIAL DEVELOPER SUCCESS STORIES

"The iOS Lead Essentials is a differentiator. It helped me gain a concrete understanding of architecture, and I was able to land a better job at one of the big four (FANG) companies! Thank you, Mike and Caio."

- 🇺🇸 Henry Chan, iOS Software Engineer

"By following the concepts in the iOS Lead Essentials training, I escaped a dead-end job and started receiving unbelievable offers I never thought I would. Companies in Greece, UK, Germany, Holland, and Luxembourg were eager to hire me, so I could negotiate and choose the best option. I chose Holland for now. Thank you very much, Caio and Mike!"

- 🇳🇱 Michael Zarmakoupis, iOS Developer

"The iOS Lead Essentials has added incredible value to my career. I’m pretty certain I wouldn’t have landed my current role if it wasn’t for the program. The amount of depth you guys go into and the minutiae that are discussed is, at times, mind-blowing. I think with how you guys pair up and openly express your opinions, sometimes taking one route and then going back to take a different route has so much value."

- 🇬🇧 Luke Jones, iOS Developer

"I got my current job thanks to the work Caio and Mike did with the course. My mentor at work said I've actually the skill of an iOS developer with 5 years of experience when I had only one year as a junior. It was lots of work but Caio and Mike made me love to code and now I'm really passionate and love my work. I'm so happy to have bought this program. I'll always be grateful to you. Keep going, you help so many people!"

- 🇫🇷 Christophe Bugnon, iOS Developer

"Last Friday I had a tech-interview and on the same day they offered me more than double what I was making on my current job. I ended up accepting. The funny thing is that it was in the same week that we did the mentoring session. It went very smoothly."

- 🇧🇷 Maurício Maniglia, Senior iOS Developer

"Thank you guys so much for the incredible content! It's really shifted my entire viewpoint on not only developing iOS apps, but software engineering and career development at a higher level."

- 🇺🇸 Ricky Munz, Senior iOS Developer

"Hi, guys. Thanks again for the amazing course. The iOS Lead Essentials is exactly what I was looking for a long time. It helped me to achieve a new level of understanding in programming and improve my skills so fast."

- 🇺🇦 Eugene Henyk, iOS Developer

“I am a professional iOS developer since 2011, and I've been building software for a long time. Last year, I started watching your videos, and with what I learned I prepared myself to go through an interview process in a company that would be a phenomenal leap in my career. Today, I accepted a job offer from them, and I'm overwhelmingly happy with this new journey! I wanted to thank you for the fantastic work you put into helping others. Your work really changes people's lives!”

- 🇵🇹 Carlos Corrêa, Software Craftsman

🚀 Effectively develop resilient apps with good architecture

Learn from the ground up and become a master at developing and maintaining a sustainable Swift codebase with TDD, BDD, DDD, Clean Architecture, Design Patterns, Git, Automation, CI/CD, and Modular Design.

Learn by developing a real-world iOS app from scratch all the way to the App Store.

You learn with a hands-on—practical—approach while writing code and building an app with a perfect mix of theory and practice.

Achieve a fast, productive, and reliable development cycle without compromising technical excellence and good design.

"I was the kind of programmer who would write some code, then come back to rewrite the whole thing again in a couple of months because I couldn't remember what I did.

I've read plenty of blogs and books about design patterns and architecture, but I could never apply them to my projects successfully.

But after taking the program, I can.

I learned clear steps to take when building an app, and I can now build new features incrementally. I highly recommend it."

- 🇺🇸 Jose Alvarez, iOS Developer

"Caio and Mike impressed me a lot, so I bought the program without hesitation. I learned how to apply programming best practices, techniques, and principles that have withstood the test of time, such as SOLID, TDD, DDD. I learned to examine a programming task from various points of view, provide different solutions, and show the pros and cons of each of them in iOS development. I'm astonished by how meticulous they are to every part of the application.

I 100% can suggest their course to every developer who cares about providing clean, maintainable, robust solutions."

- 🇷🇺 Azamat Valitov, Senior iOS Developer

"iOS Lead Essential is the best course available for mid/senior iOS developers who are looking to push their skills to the next level.

You’ve got everything in one place: BDD, TDD, SOLID Principles, Pair programming, CI/CD with a real-world example project. I couldn't have asked for more."

- 🇬🇧 Ravikanth Marri, iOS Developer

✅ Turn your tests into a powerful tool

Transform your development skills and improve the quality and value of your work with the discipline of Test-Driven Development and the power of Modular Design.

"I thought I was a senior iOS developer until I found the Essential Developer channel. I used to hate writing unit tests because I never found someone who could prove to me why it really mattered. Now I can't imagine myself creating a project without using TDD.

In the program, I also learned how to really apply architectural best practices and design patterns in a way that makes sense.

I really think all developers (even from other platforms) should watch their course. Of course, it's for iOS developers, but there is so much content about architecture and best practices. I find myself watching and rewatching the lectures over and over again.

Thanks from Brazil 🇧🇷"

- 🇧🇷 Rodrigo Manguinho, CTO & Lead Software Architect

"iOS Lead Essentials is by far the best online iOS course I’ve taken, and I’ve tried a lot. Watching Caio and Mike develop an app—and clearly explaining not only 'how', but 'why' they are doing things—makes learning some challenging concepts clear. I've learned how to truly separate code into different modules and to test parts of an app that I had never been able to figure out before. I've gone through the whole course at least twice (with some sections more than that), and every run-through reveals more compelling insights I had previously missed."

- 🇬🇧 Andrew Warwick, iOS Developer

⛩ Our mission

Our mission is to empower iOS developers to go to work happy and feel safe to deliver their best work. Every day.

You matter, and your work matters!

"When I found out about the iOS Lead Essentials course, I immediately purchased it, and it was definitely worth it.

I've learned so many things from the program. I'm a big fan of TDD, but I was reluctant to use it in my work projects as it was increasing my development time. However, after taking the course, I was able to follow TDD in my work projects without slowing down development. And at the same time, it increased my confidence and code stability.

I'm very happy to have found Caio and Mike. Thank you for sharing your experience, and I am looking forward to new lectures."

- 🇷🇺 Andrey Chirkov, iOS Developer

📣 Ask us any question

Throughout the lectures, you'll have the ability to communicate with us and other members of the community. In the lecture pages, you can ask us any questions to expand your learning experience.

You'll also have access to inspiring discussions and Q&As to learn from other developers' questions.

There are accompanying articles with instructions walking you through every aspect of what you're faced with.

You'll learn why, how, and what to do.

"The iOS Lead Essentials course by Caio and Mike is unique in the iOS Engineering field. It helped me understand how to design a really modular and clean architecture with practices like BDD, TDD and UML diagrams. During the course, their answers to any questions I had were carefully prepared and documented. Achieving this level of knowledge takes a lot of time of studying and practice, and I am grateful that Caio and Mike decided to share their knowledge and experience with the community and help me become a better professional."

- 🇷🇴 Mihai Cristescu, iOS Developer

🌱 Our approach

We believe we all face different challenges, so you’ll learn different points of view and trade-offs for all presented approaches. You’ll be given a clear and concise path but also the tools to make your own decisions.

"As a self-taught programmer, I’ve spent years and years consuming and absorbing information from so many disparate sources, having to connect the dots on my own. But there’s a true and distinct difference between information and instruction.

In the iOS Lead Essential program, I learned the why’s to all the how’s. It equipped me with the freedom to move away from seeking silver-bullet solutions and the confidence to build good solutions tailored to my domain."

- 🇺🇸 Hai Phung, Lead iOS Engineer

“I was hugely impressed by Caio’s ability to look at code and see through to the core of the problem. It was a joy to watch him develop using TDD and SOLID principles. The resultant code was always elegant and invariably worked when he stopped writing tests and finally started the simulator.”

- 🇬🇧 James Hogg, Senior iOS Developer

Your Instructors

Caio Zullo
I've been writing software since 1998, professionally since 2006, and on Apple platforms since 2009. I love building robust, well-engineered, and beautiful applications and coaching developers to achieve their best potential.

Mike Apostolakis
I'm a software engineer from Athens, Greece. My goal is to help the software industry evolve by enabling developers and companies to practice valuable techniques and build powerful and durable systems.

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Here are some places where you can find our students

Frequently Asked Questions

What's the iOS Lead Essentials?

The iOS Lead Essentials is an online program meticulously thought out for iOS developers who want to become black-belts and be part of the highest-paid iOS devs in the world.

A black-belt iOS developer denotes a senior developer with an expert level of technical and practical skills who can confidently deliver iOS apps they're proud of and even turn messy codebases into successful projects.

As a black-belt developer, you're a reference in the industry and recognized for your abilities. So you can choose the projects you work on worldwide, lead and help other developers grow, and you get paid exceptionally well.

In the iOS Lead Essentials program, you learn a straightforward, step-by-step methodology to become a black-belt senior iOS developer by practicing with experienced black-belt developers who achieved it and can teach you the way - just like in martial arts.

The methodology is designed and taught by Caio Zullo and Mike Apostolakis through an online training program organized into a few cohorts of developers a year.

The time required and results of applying this methodology vary depending on the experience of the developers who apply it and the country/city/market they operate in.

For example, senior developers can achieve results much faster than a junior developer on average.

Who is the iOS Lead Essentials program for?

The iOS Lead Essentials is designed for mid and senior iOS developers who want to transform their skill set in Swift/iOS development and reach the next level in their iOS careers.

The iOS Lead Essentials program is not intended for total beginners in software development.

We recommend at least 1 year of professional experience. We expect students to be professional developers with knowledge of the basics of Swift, iOS development, and Xcode.

You'll follow a step-by-step methodology with guidance from us, Caio and Mike, and a community of over four hundred iOS developers who care about delivering work that matters.

Will I get more than your videos on YouTube?

Yes.

The videos on YouTube are demonstrations.

The iOS Lead Essentials is a comprehensive mentorship program covering every aspect of delivering solid iOS apps in Swift.

You'll learn from the beginning to the end, either if you're a junior or a senior developer.

We worked really hard on this. We put years of work into the lectures.

Can I ask questions during the course?

Of course, you can ask any question regarding the course lectures. Caio and Mike will personally reply to you and help you make the most of the program. You'll have one year of support from us.

Do I get a certificate of completion? Is there a final test?

Yes, you'll receive a certificate of completion once you complete the program.

And yes, there are code assignments you need to complete throughout the lectures. You can complete them at your own pace and at any time.

The challenges are optional. You can move on without completing them. But in this case, you won't receive a certificate of completion.

You must complete all lectures and pass all code assignments to receive a certificate of completion.

We review each code assignment on GitHub, line by line, and provide detailed feedback to help you really learn and get the most out of this program.

This course looks very advanced. Do I need to be a very experienced iOS developer to benefit from the course?

This is not a course for total beginners that have no experience with coding. If you don’t know how to code at all, this course is not for you.

If you have at least 1 year of professional experience in iOS development and you’re serious about achieving a remarkable iOS career, this is the course for you.

The course provides a structured curriculum and a step-by-step methodology that makes it the fastest and simplest way to master good software engineering principles in iOS development.

Waiting to improve your skills to enroll would be equivalent to waiting to get fit to join the gym!

Do I need to be a Swift/iOS developer to follow the course?

No, you don’t have to be an iOS developer. Students with a background in languages such as C, C++, JAVA, C#, Objective-C, Ruby, and JavaScript have successfully taken the course.

If you know how to code well in another language/platform and you’re serious about achieving a remarkable iOS career, the content is definitely within your reach.

Will the content you provide be outdated with the next releases of iOS and Swift?

Definitely not. You won't learn based on frameworks that can go out of date. Instead, you'll master proven software design processes that allow you to build robust apps now and in the future.

Moreover, you get access and free updates to the content for a whole year.

Is the iOS Lead Essentials program online or face-to-face?

The iOS Lead Essentials course is 100% online.

Although we probably won't meet in person, you can reach out to us and ask any questions regarding the course. You'll have one year of support from us.

When does the course start and finish? Is there a time limit? How long it takes to complete it?

The iOS Lead Essentials course is 100% online so that you can progress at your own pace.

The program doesn't have a predefined duration. The duration will depend on how much time you can dedicate to it.

If you dedicate yourself, you can finish the program in 3 months.

But there is no rush, and you won't fall behind. You have access to the program for a whole year, which means you can repeat the lectures over and over and get answers to all of your questions.

I have my own project, will you help me build it? Can you help me with my existing code?

We don't offer consultancy on your existing projects or codebases as part of the iOS Lead Essentials program.

With what you learn in the program, you'll be able to solve your challenges.

Why do you open and close enrollment periodically for iOS Lead Essentials?

Because we want to personally assist and support all students. And that’s a lot of work!

The iOS Lead Essentials program is more than a collection of lectures and articles.

The program is effective because our students also interact with us through discussions, lives, and Q&As.

Therefore, we can only enroll a handful of students at a time.

Every discussion, Q&A, live, and mentoring session is open to the community. So everyone can learn and benefit from every interaction.

Our goal is for no one to be left behind. If you want to level up, this is the course for you.

Does everyone who enroll in the iOS Lead Essentials course automatically become remarkable developers and increase their income?

No. Of course, you need to learn, practice, and apply the methodology first.

The iOS Lead Essentials course is not a magic formula.

We have students that more than doubled their salaries, but those are not typical results. It requires practice and commitment.

And not everyone is willing to do what it takes.

In our experience, some do the work, and some don’t. Simple as that.

The program offers a straightforward, step-by-step process with community support and our personal help.

We are committed to helping you achieve your goals, but we can’t do the work for you.

That’s why we don’t recommend the course to people who are just curious or not willing to do the work.

As mentioned previously, amazing results require effort and commitment.

If you’re not serious about achieving an enriching and fulfilling career in iOS development, please leave the seat open for another developer.

What if I don't have time to take the iOS Lead Essentials course?

If you don't have time to take the course, that’s absolutely fine. Time is extremely scarce, and you need to define your priorities.

However, if you don’t find time to invest in yourself, you risk falling far behind people that are working hard to build a bright professional future.

The iOS Lead Essentials program is for motivated professionals that put their future as a priority in their life.

And again, the iOS Lead Essentials is an online program. You can watch the videos at your own pace, at any time of the day. You can effectively become a better iOS developer by dedicating less than an hour a day.

Is this course easy?

No. Achieving technical excellence and a remarkable career is not easy.

If we said that, it would be disrespectful to our students that worked hard to achieve it.

It's not easy, but with the detailed explanations, step-by-step practice, and continuous support from Caio & Mike, it becomes simple.

Who are you? Why did you create the Essential Developer Academy?

We are Caio and Mike, lead developers and mentors to hundreds of iOS developers worldwide.

We love building apps and helping other developers thrive. It's part of who we are.

We founded Essential Developer to help iOS developers achieve technical excellence and a prosperous future for themselves, their families, friends, peers, and companies.

Our mission is to empower iOS developers to go to work happy and confident to deliver their best work every day.

You matter, and your work matters.

We're building and supporting a community of professional iOS developers who, like us, believe in high-standards, mastery, integrity, and delivering great work.

We want you to succeed.

And we want you to get everything that you worked hard for, so you can advance your career and get yourself and your family a better future.

How can I contact you?

For any further questions you may have, you can contact us here.

I want to join!
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