Skip to content
UdemyIntroduction to Computer SciencePaid courseAll LevelsCertificate

The Complete Android Development Course with Kotlin (Udemy.com)

Build Android apps with Kotlin, Jetpack Compose, Firebase, Room, Hilt, Coroutines & modern architecture. Build 7 Apps!

Created by: Dobinca Cristian

Last updated September 2026

icon
What you will learn

  • This course will teach you the Kotlin programming language from the ground up, covering its syntax, data types, and control structures.
  • You will learn how to use Kotlin to build Android apps, including how to design UI layouts, handle user input, and connect to web services.
  • By the end of the course, you'll be able to create fully-functional Android apps that can be deployed to the Google Play Store.
  • Along the way, you'll gain valuable skills in problem-solving, debugging, and software development that will serve you well in any programming-related career
  • You will learn and master Jetpack Compose
  • You'll be able to work as an Android freelancer and work from anywere in the world.
  • You will build Apps for your portfolio to apply for developer Jobs.

How it compares

Against the other 58 rated Udemy courses in Introduction to Computer Science on CourseDuck:

  • Rating4.4 out of 5higher than 32% of them
  • Reviews404#18 of 59 by number of reviews
  • Length74 hourslonger than 100% of them
  • Last updatedSeptember 2026more recently than 100% of them

icon
Course Description


Kotlin and Android Development Masterclass

Are you ready to embark on a transformative journey into Android app development? Look no further! This course will make you a confident Android developer — guided by Dobinca Alexandru, one of the best Udemy instructors.


Reviews Speak Volumes:

• "One of the BEST Instructors on Udemy: Dobinca Alexandru."

• Uttkarsh Srivastava: "One of the best instructors seen on Udemy. The way he explains and replies to all the comments is great."

• Omar Yousif: "I recommend it for beginners. Also for those who want to add more skills to their resume."

• Aftab Lateef: "Great course! I like the way it is structured and covers a wide array of important topics that every Android developer should be aware of."

• Brian Businge: "So clear and precise."

• Hatem Alamin: "He explains every detail in a nice way, so I loved the content."

• Sultonov Dilshod: "I love it very much. The course is completed with contemporary IT knowledge."

• Jon Silva: "Accent is not difficult for me... I recommend this course to everyone."


Instructor Excellence

When you join this course, you’re not just gaining access to top-notch content — you also get direct access to Dobinca Alexandru, who goes above and beyond to ensure your success.

• Responds to literally every question

• Takes feedback seriously

• Added entire new sections, including updates on Jetpack Compose and modern Android tools


This level of engagement and commitment sets this course apart.


• Start with the fundamentals: variables, data types, control structures

• Progress to MVVM architecture and advanced concept


Advanced Concepts

• Coroutines: Write asynchronous, non-blocking code

• Generics: Create flexible and reusable code

• Databases (SQL, Firestore, Room): Handle data efficiently

• Navigation Component: Build smooth navigation flows

• Retrofit: Make network calls and handle APIs

• Notifications, Broadcast Receivers, Services: Manage background tasks

• RxJava: Build reactive, event-driven apps

• Dagger 2 & Hilt: Implement dependency injection professionally

• Kotlin Multiplatform: Explore cross-platform developmen

• Widgets: Bring interactive experiences to home screens

• Jetpack Compose: Build modern, stunning UIs


XML and Jetpack Compose Approach

• Every app is built twice:

     • Once using traditional XML layouts

     • Once using Jetpack Compose

Master both classic and modern ways of Android development


Hands-On Projects

• Quiz App

• Drawing App

• Weather App

• Messenger App

• Uber Clone

• 100-Episode Food App (Jetpack Compose): Build a complete modern app from start to finish


What You’ll Learn:

• Master Kotlin: Deep proficiency in the official Android language

• Build a Solid Foundation: Essentials — variables, functions, OOP, data persistence

• Advanced Android Development: MVVM, dependency injection, reactive programming, background services

• Develop Real-World Projects: Apps for your portfolio

• Understand Both XML and Compose: Smoothly transition between classic and modern UI frameworks


Conclusion:

Step into the dynamic world of Android development, guided by Dobinca Alexandru.

Perfect for beginners or those with some coding experience

Gain skills, confidence, and real-world projects to excel as an Android developer

Start your journey today — and unlock a world of possibilities!

icon
Udemy Discount

The discount is applied through our link. Open the course from here and Udemy's current promotional price is applied at checkout on most courses, no code to type.

Some courses are excluded from Udemy's promotions. If the price does not drop, clear your browser cookies and use the button again.

icon
Instructor Details

Dobinca Cristian

My name is Alex, and I am a 27-year-old software developer. Programming is not just a profession for me; it's a true passion that fuels my every day. I find immense joy in learning new things related to programming and technology. It's like solving a puzzle that constantly evolves, challenging me to think creatively and analytically.

Being a software developer allows me to turn my ideas into reality, and that's something I truly cherish. Over time, I have had the privilege of creating a few apps and working on various projects, each of which has taught me valuable lessons and expanded my horizons.

But what truly excites me is the opportunity to share my knowledge with others. There's an incredible sense of fulfillment that comes from helping others understand the world of programming. I love teaching and guiding aspiring developers to discover the same wonder and fascination that I experience in this field.

In my heart, I believe that programming has the potential to create amazing things for humanity. The power to create software that can make people's lives easier, solve problems, and bring positive change is awe-inspiring. I am convinced that the more people who learn programming, the better it is for the world as a whole.

icon
More Introduction to Computer Science courses

Free

$10.99

$64.99

Free

$59.99

$84.99

icon
Reviews

4.4

404 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Richard Shandross on 2/1/2026

The Kotlin portion of the course is excellent; I'd give it 4.5 stars. However, the Android app portion is a real disappointment to me. If you like not having the structure of the app shown to you at the start and then spending hours watching the instructor type and narrate everything they type, then you will like this course. I had to stop in the middle of the quiz app, as I could no longer take it. On the positive side, Alex is very engaged in the Q&A and provided pretty good answers with very good turnaround. I may come back at some future point to type along and then study the structure of the app in my own Android Studio, but what I need now is instruction from a teacher.

By Павел on 3/11/2025

This course, in my opinion, provides basic skills in understanding the Android studio and Kotlin environment. But to fully understand how to create applications presented in the examples yourself, you need to additionally study a lot of material. It is worth noting that to create most simple applications, half of this course is enough. Therefore, I wish the author of this course not to stop there, and sometimes update the course.

By Adrian Petrea on 2/24/2025

The first time when I encountered your course was in the 13 hour free intro on youtube. After 6 hours and some notes that I've took I felt that I need a more profound explanation of what Kotlin is and how it works. So, thank you for making me eager to buy your full course, hope It will change courses in my carrear. Salutari si multe aprecieri Alex!

By Amal V Joseph on 2/24/2025

I'm very sorry to say this because your language very difficult to understand, second there we have an option to see the code split option if it was enabled during the coding time everyone can see the live changes. That was a good relief in this course, but you didn't try. I have tried several times to finish this course. Till the end of the Kotlin course, we can adjust.

By Pulkit Singh on 1/21/2025

Alex uploaded the initial videos of kotlin on youtube (freecodecamp) channel and there i absolutely loved the teaching style of Alex , everything was explained in such detail and i was searching a Android course and i saw Alex has a android course here on udemy it was a no brainer for me i just clicked purchased and believe me guys This is the best android course , He teaches so much in detail and slowly that is such a good thing for a beginner just like me , Just buy it you will not regret , Its an absolute blast

By Richard Brown on 8/2/2024

The pace can be a little slow sometimes, and some parts can be a little complicated for beginners. But overall the course is very informative and easy to understand as Alexandru walks you through everything.

By Prateek Baan on 7/11/2024

i am only into the basics and felt like reviewing, this guy is literally giving so much time and explaining each concepts in very detail. For beginner like me it's very easy to understand and grasp the concepts. Hope this same style continues in more complex topics ALEX....kudos to the effort!!

By Bwigenge Alain Marley on 9/22/2023

Few weeks in, i built my first real app -a simple quiz app using my academic resources Nothing fancy, but seeing it run on my phone was mind-blowing. If you're serious about Android, it's a game-changer. Just don't blame me when your friends get sick of hearing about your latest app idea!

By Jonatan Viotti Rodrigues da Silva on 7/7/2023

Accent is not difficult for me. In fact, it sounds interesting. I'm a native portuguese speaker who decided to learn English some years ago, because I wanted to play video games and understand what was going on. After some years, I started working in a company where I needed to talk to some foreign guys from India and other places around the world. In the early days it was very strange and I had a little delay to understand things, but today I'm able to understand different accents. Regarding this course, I think it's well explained and the instructor likes to talk about the content. I'll let my final thoughts when I finish the course, but for now I recommend this course to everyone and I thanks the instructor for his effort making this course available.

By Ryan Hasty on 3/20/2023

Right when I heard your voice, I knew it was going to be a fantastic course. I watched your Youtube video that was featured on freecodecamp. It taught me a lot, but now I want to learn the extra material that you have on this course. I would recognize your voice anywhere. Thanks for the awesome content.

Showing all 10 reviews on CourseDuck

Read all 404 reviews on Udemy

icon
Quality Score

No CourseDuck member has rated this course yet. Taken it? Give each part a thumbs up or down.

Content Quality
/
Video Quality
/
Qualified Instructor
/
Course Pace
/
Course Depth & Coverage
/

Overall Score : 88 / 100