Learn to build APPS

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It’s important to learn from a source you trust.

All the courses on my site are built based on my commercial experience working as a mobile developer and consultant for various tech companies. All the knowledge here is based on practical expertise.

Projects

My courses are practical and applied to real world scenarios.

If we’re learning Android or iOS dev, we’re building apps. At the end you will have a portfolio that you can show a potential employer, or have the practical skills to build your own app.

If we’re learning architecture, we’re going to apply it to a real world example, to see how it works in practice

Best practices

In tech, there is a right way and a million wrong ways to build a system.

In my courses we learn how and why we need to build things the way we do.

Some of the available courses

Android dev

Study libraries and tools, Kotlin, Jetpack Compose, Navigation and many practical application

iOS dev

Under development

Kotlin Coroutines

Foundational and advanced Kotlin Coroutines concepts, Android app applications, Retrofit, Room, MVVM

Kotlin

Master the fundamentals and advanced features of Kotlin development

Swift

Master the fundamentals and advanced features of Swift development

Design Patterns Swift

Improve your coding skills by learning Software Design Patterns applied to Swift development

Check out ALL available courses

What other learners say

I like the way that you structure the learning materials for this course, I come from a php framework background and want to switch to android mobile space. Thank you
Alan Martin
Alan MartinComplete Kotlin Development Masterclass
Wery well structured and concise. It's easy to follow and the instructor's explanations are very clear.
Dahn Maier
Dahn MaierComplete Swift Development Masterclass
The course was awesome. I glad I didn't skip any parts because there are so many great language features and they were covered beautifully. Kotlin is a great language. This course is an example of how to teach coding fundamentals.
Daniel Dawson
Daniel DawsonComplete Kotlin Development Masterclass
Very concise course without exceeding the scope of the material! I liked how simple it was to demonstrate the topic at hand without building an intricately massive project that dilutes the main point of the topic.
Kelvin Brannon
Kelvin BrannonKotlin Coroutines Development Course
It was an Awesome experience in getting the things know about Git installation to get all the things about source code,Push,Pull and all other commands and this is the best repository for storing the source code and it was easier for the same to learn.
Chaitanya Billakurthi
Chaitanya BillakurthiBasic Git and GitHub essentials
The course is well designed with clear descriptions and examples or how to best apply the knowledge
Darrin Jones
Darrin JonesAndroid MVVM Architecture
The best design pattern course that I have ever taken. I have practised these patterns since many years, yet I gain a deeper understanding from these concise tutorials. I have purchased almost every course provided by Stefan and the reason is that it provides tremendous value. Thanks Stefan !
David Chhetri
David ChhetriKotlin Design Patterns masterclass
While you can learn to program without knowing about patterns this course takes your skills to the next level and can help bring understanding to why certain programming choices were made and how you can follow similar patterns. I love the examples and the tests provided.
Tara Fennell
Tara FennellBuild a Tinder clone in Android Jetpack Compose and Firebase
I really enjoy this course. Catalin always explain the idea of Why do you apply this line in the code. I really recommend this course.
Ricardo Jimenez
Ricardo JimenezClean Architecture & SOLID principles for Android in Kotlin
Very good course, it's helping me a lot to gain more knowledge about good practices of clean code and architecture for me to start applying these concepts on my own projects!
Rubens Francisco de Assis Filho
Rubens Francisco de Assis FilhoBuild a Tinder clone in iOS SwiftUI and Firebase
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