Where to Find the Best Online Kotlin Courses, Classes, and Training

If you’re interested in learning Kotlin, there are affordable and effective online Kotlin courses to help you start or advance your career as an Android or Java developer. This modern language combines functional programming, Java interoperability, and reliability in app development, making it easy to learn and specialize in, even as an absolute beginner. 

Taking an online Kotlin course or training program has lots of benefits. First off, proficiency in the use of Kotlin is an in-demand skill for mobile developers, as Kotlin is revolutionizing the mobile app industry. More developers are using Kotlin to design efficient applications. This article will cover more about how you can use Kotlin to invest in your career.

What Is Kotlin?

Kotlin is a modern cross-platform and statically typed object oriented programming language used for Android applications and server-side Java development. Its basic syntax is used to write reliable code for Java Virtual Machine (JVM), Android, and iOS.

Why Online Kotlin Courses Are Important for Professional Development

Online courses are a flexible way to learn Kotlin, especially if you’re a busy professional who can’t commit to a long-term program. These courses cover various topics for students of all levels of experience and expertise. With an online course in the official language for Android, you can steer your learning journey toward a mobile app development role.

Should You Attend a Coding Bootcamp to Learn Kotlin?

Coding bootcamps will ensure you get the opportunity to build a strong foundation of knowledge in Kotlin while practicing with real-world projects to boost your expertise and career prospects. The best Kotlin bootcamps expose you to the dynamic thinking style used in Android application development.

Overview: The Best Online Kotlin Courses, Classes, or Training

When choosing which online Kotlin program is best suited to you, it’s helpful to consider your preferences and requirements. You’ll want to be sure to assess variables like length of time, price, course focus, provider, and whether it includes a certificate. The table below includes some of the best online Android development courses and Kotlin programs to choose from.

In Detail: The Best Online Kotlin Classes, Courses, or Training

Kotlin for Android Developers | Antonio Leiva

• Learning Format: Full course with hands-on training
• Level: Intermediate
• Subjects Covered: Kotlin, Java interoperability, and Android development

This course, offered by Antonio Leiva, is certified by JetBrains Academy and comes with a certificate of completion. In this course, you’ll learn all the basics you need to build an Android app from start to finish. You’ll explore how Android interacts with the Kotlin framework as you learn how to apply the object oriented features of Kotlin to a mobile application.

This course is specially designed for Android developers who already have basic knowledge of the Kotlin framework. It’s especially useful for students who understand the limitations of using the Java programming language to write lines of code for mobile development.

Key Takeaway: By taking this course, you’ll get to learn Android development from a real Google engineer. 

Learn Kotlin | Codecademy 

• Learning Format: Full course with hands-on training 
• Level: Beginner
• Subjects Covered: Introduction to Kotlin, data types and variables, conditional expressions, collections, loops, functions, and classes  

This Kotlin course is offered by Codecademy and focuses on Kotlin fundamentals. Throughout the course, you’ll learn how to write a basic program using Kotlin and participate in a series of quizzes and hands-on projects. Upon completing the course, you’ll receive a certificate of completion that can be added to your resume and LinkedIn profile.

Codecademy offers free and paid subscription options to students. In the free version, students have access to basic courses, peer support, and a limited number of practice exercises. The monthly subscription includes all content, projects, guidance, certificates, unlimited practice, and peer support.  

Key Takeaway: In this course, you’ll complete practice projects that you can add to your Kotlin and app development portfolio.

Kotlin for Java Developers | Coursera

• Learning Format: Full course 
• Level: Intermediate 
• Subjects Covered: History of Kotlin, Java, functional programming, object oriented programming (OOP), conventions, sequences, lambda functions

This intermediate course is facilitated by Coursera and offered by JetBrains Academy. Students in this course will learn about the history of Kotlin, transitioning from Java to Kotlin, variables, functions, conditionals, nullability, solutions, properties, OOP, and many other related topics. 

Coursera allows students to audit this course for free. The auditable version lasts for six weeks and doesn’t have graded assignments, quizzes, or a certificate of completion. The paid subscription gives students unlimited access to all of these features. 

Key Takeaway: This course is ideal for intermediate learners who have a background in Java and want to transition to Kotlin.

The Ultimate Guide to Kotlin Programming | Educative

• Learning Format: Full course 
• Level: Beginner 
• Subjects Covered: Kotlin essentials, functions in Kotlin, external iteration, argument matching, type safety, objects and classes, unit testing, Spring applications, Android applications

This comprehensive course begins by exploring the programming fundamentals of Kotlin and how they differ from Java. You’ll learn how to write functions in Kotlin, use collections, implement Kotlin programs for Android development, conduct unit testing with Kotlin, and program asynchronously.

This course is primarily dedicated to ensuring students gain a thorough understanding of Kotlin and develop the necessary skills for professional use. Students will have access to live code environments where they can practice their skills. This course is self-paced and text-based.

Key Takeaway: This course is an excellent option for beginners who want to use Kotlin for Android development. Its text-based format is ideal for students who prefer visual learning. 

Android Basics with Kotlin: Associate Android Developer | Android Developers 

• Learning Format: Full course with hands-on training 
• Level: Beginner
• Subjects Covered: Kotlin basics, layouts, navigation, connecting to the Internet, data persistence, WorkManager

This course prepares students for the Android Associate Developer certification exam and is recommended for students who want to specialize in building Android apps with the Kotlin language. This course uses a hands-on learning approach, which enables students to practice as they learn. 

As part of your program, you’ll learn how to use the Android Jetpack’s WorkManager API to plan tasks, including downloading new content and backing up data. You’ll also learn how to keep apps running through disruptions, enhance users’ navigation experience, and optimize apps. 

Key Takeaway: This course is specifically designed to prepare students for the Android Associate Developer certification exam.  

Kotlin Training | HKR Trainings

• Learning Format: Training program 
• Level: Advanced
• Subjects Covered: Kotlin basics, classes and objects, interoperability, lambda functions 

This training program is designed for advanced learners who have experience with modern programming languages, and preferably at least one year of working experience programming with an integrated development environment. Some of the topics covered include basic syntax, object oriented programming, Kotlin features, Java interoperability, and functional programming. 

You’ll learn to build Android applications from scratch and gain exposure to other topics such as destructuring declarations, expressions, exceptions, dynamic types, and type-safe builders. You’ll also have access to career services, such as practice interview questions for technical interviews. Students can contact the provider to request pricing information.

Key Takeaway: This course is designed for advanced learners who have experience with a modern programming language, but want to add Kotlin to their skillset. 

Kotlin Training | MindMajix

• Learning Format: Training program  
• Level: Beginner 
• Subjects Covered: Kotlin basics, classes and objects, lambda functions, interoperability

This training program is designed to introduce beginners to Kotlin basics as well as more advanced topics. The program includes 30 hours of sessions, 25 hours of labs, flexible learning options, and real-time projects. Students can request pricing information on the website. 

Throughout the training, students will learn about basic Kotlin concepts, classes, objects, lambda functions, inline functions, calling Java from Kotlin, calling Kotlin from Java, and many other related topics.

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Key Takeaway: This training program uses a hands-on learning approach to teach beginners how to create real-world Android apps. 

Developing Android Applications with Kotlin | Pluralsight 

• Learning Format: Full course with hands-on training
• Level: Beginner or intermediate
• Subjects Covered: App fundamentals, storage and data, enhancing app experiences

This course focuses on the foundations of Android development. Throughout the course, you’ll learn to build a full-featured application that is centered around the user, and acquire the necessary Kotlin and Android skills to pursue a career in app development. You’ll learn how to manage user settings and device resources for a better user experience.

Key Takeaway: In this course, you’ll acquire relevant Android and Kotlin skills for designing interactive user experiences. 

Switch to Kotlin from Java for Android Development | Pluralsight 

• Learning Format: Full course with hands-on training 
• Level: Beginner
• Subjects Covered: Kotlin environment, Android APIs, classes, views, adapters, data

Pluralsight offers this beginner course to students who want to pursue a career in Android development. This course explores the ins and outs of Kotlin, teaching students how to convert Java files to Kotlin and integrate Kotlin Android Extensions.

As part of the course, you’ll learn how to write code using Kotlin, integrate APIs written in Java, get acquainted with null safety and data model classes, and how all of these items come together to create an interactive Android application. 

Key Takeaway: This beginner-friendly Pluralsight course aims to fully prepare students to switch between Java and Kotlin for Android development.

Kotlin: Kotlin 1.2 Beginner | Skillsoft 

• Learning Format: Five-course program
• Level: Beginner
• Subjects Covered: Introduction to Kotlin, integrated development environments (IDEs), syntax, loops and functions, objects and classes

This course explores basic Kotlin tools. You’ll learn the various integrated development environments and how Kotlin interacts with the Java Class Library. You’ll also be introduced to the basic syntax of the Kotlin language, including data types, constants, strings, and variables. 

As part of this program, you’ll learn how to build an app project in Kotlin, install IntelliJ IDEA, use Android Studio, integrate the Kotlin plugin for Eclipse, get the most out of the Java software development kit, and impute loops and functions in a Kotlin application.

Key Takeaway: This free beginner course is ideal for anyone who wants to develop Kotlin skills without having to financially invest. 

Become an Android Kotlin Developer | Udacity

• Learning Format: Full course with hands-on training 
• Level: Beginner
• Subjects Covered: Android development, Kotlin, Android Studio

This nanodegree is offered in collaboration with Google, and is intended to train students to become expert Android Kotlin developers who can revolutionize the mobile app industry. This program is ideal for busy professionals looking to switch careers or grow in their developer roles, as it’s completely self-paced. 

You’ll learn how to improve the functionality of your applications and optimize the user experience using the robust notification system. You’ll learn to create animations to enhance the look and feel of your interface. You’ll also learn how to create location awareness for your app in Google Maps.

Key Takeaway: This program is offered by Google. As such, it is focused on equipping students with effective developer tools for a professional career in Android Kotlin development.

Kotlin Bootcamp for Programmers | Udacity

• Learning Format: Six-lesson course
• Level: Intermediate
• Subjects Covered: Kotlin basics, functions, classes, Kotlin essentials, functional manipulation 

If you already have some programming experience, you can skip Udacity’s nanodegree program and take this free intermediate course instead. It focuses on the fundamentals of Kotlin for implementing code patterns in the design of your application. You’ll learn to create basic programs using collections, lambdas, classes, extensions, and other key features. 

Students in this course will set up IntelliJ IDEA, write statements and expressions using Kotlin, and use lambdas to write higher-order functions in Kotlin.

Key Takeaway: Google offers this intermediate-level course to students with at least one year of programming experience. 

Jetpack Compose Crash Course for Android with Kotlin | Udemy

• Learning Format: Full course
• Level: Beginner 
• Subjects Covered: Jetpack Compose, profile card layouts, dynamic lists, Kotlin Coroutines, Kotlin Retrofit, animations

In this course, you’ll learn how to build an Android user interface using Kotlin, and use the various technologies in the Jetpack libraries, including Compose, LiveData, Navigation, and ViewModel, to build more efficient and functional apps. You’ll also learn to integrate the Kotlin APIs with Compose for interactive Android user interface widgets.

This course includes 11 hours of on-demand video, 49 downloadable resources, full lifetime access to course content, and a certificate of completion. Udemy’s courses are all self-paced and come with a 30-day money-back guarantee. 

Key Takeaway: This crash course is ideal for students who are interested in learning Kotlin for Android development but need a learning path that allows them to learn at their own pace.  

The Complete Android 12 and Kotlin Development Masterclass | Udemy

• Learning Format: Full course
• Level: Advanced
• Subjects Covered: Android Studio, Kotlin fundamentals, object oriented programming in Kotlin, XML and user interfaces, Trello

This masterclass teaches you how to create an Android app of your choice. This course is for people who want to get better at building Android applications using Kotlin. It will expose you to advanced topics and equip you with more than enough Android app development experience to succeed in the industry.

You’ll learn how to create cloud apps through Google Firebase, monetize your apps through Google Play, and efficiently code with Kotlin. The course includes 63 hours of on-demand video, 43 articles, 172 downloadable resources, lifetime access, and a certificate of completion.

Key Takeaway: Throughout this course, you’ll participate in several projects, including workout apps, quiz apps, weather apps, and drawing apps.

The Complete Kotlin Developer Course | Udemy 

• Learning Format: Full course with hands-on training 
• Level: Beginner
• Subjects Covered: Making an Android app with Kotlin, command-line, JavaScript and Kotlin

Udemy offers this beginner course to help students learn the fundamentals of Kotlin programming. You’ll gain insight into the limitations of Java in Android development, and how those limitations have accelerated the use and success of Kotlin. In this course, you’ll create two functional Android apps. 

As a beginner, you’ll go step by step through how to use the Kotlin language and its features,  including variables, strings, statements, comments, booleans, lists and arrays, functions, nullability, and classes. Udemy awards a certificate of completion to students who finish the course. 

Key Takeaway: In this course, students will create two Android applications for their professional portfolios. 

Online Kotlin Classes, Training, or Courses: Which Is the Right Option?

Online Kotlin courses, classes, and training programs all have something unique to offer students. Ultimately, the one you choose should accommodate your budget, desired concentration, timeframe, and preferences. There are no right or wrong choices among the three options. The program you pick should be right for you. 

How to Choose the Right Online Kotlin Course, Class, or Training Program

First Factor: Affordability

One of the biggest factors to consider is the cost of the program. While some programs are offered for free, others can range from hundreds to thousands of dollars. There are many excellent and reputable courses available online, so choose options within your budget.

With that, most program providers offer different forms of financial assistance, including payment plans, discounts, scholarships, and grants. So, if there’s a particular program you’re set on pursuing but it’s not within your budget, check out the provider’s website and see what financing options are available.

Second Factor: Hands-On Experience

If you’re pursuing an online Kotlin course for professional reasons, it’s really important to choose a program that includes hands-on experience. This is especially important if you’re a beginner and you want to gain entrance into the tech world.

Hands-on experience prepares you for the tasks you can expect in the workplace, and it allows you to build your professional portfolio for employment. Most courses and training programs offer hands-on training, including entire projects.

Third Factor: Certificate

Certificates function as proof of completing the relevant course and learning the related skills. If you’re enrolling in an online Kotlin course for professional reasons, it’s important to choose a program that includes a shareable certificate of completion.

A certificate will show your prospective employer that you have the Kotlin skills touted on your resume and cover letter. While many training programs and courses provide certificates, some don’t. If you don’t have any professional goals, you might not care about whether or not a certificate is provided. 

Kotlin Course Certificates vs Certifications

Certificates and certifications have two distinct functions. Kotlin course certificates are awarded to students who complete an associated course. Kotlin certifications are awarded after you pass an associated professional exam, and they are a form of gatekeeping that proves your eligibility to work in a given role or field. 

Importance of Kotlin Certifications

Kotlin certifications are one of the best ways to enter the field or advance your career within the field. They prove to employers that you’re up to speed with the latest trends in Kotlin and are equipped to handle the demands of a mobile app development career.  

Why You Should Take Online Kotlin Courses or Classes

If you want to become an Android developer but you only know Java, it’s time to switch to Kotlin. Kotlin is a secure and more concise way to code for Android or JVM. You’ll benefit from its interoperability and functionality in creating reliable applications. 

Online Kotlin courses or classes allow you to take advantage of this knowledge in a flexible, accessible, and affordable way. The app industry is moving towards the wholesale adoption of the Kotlin language, and if you want to stay relevant in the industry, you’ll need to do the same.