Kotlin: The New Contender for Better, Faster, and Safer Code

If you’re considering learning a new programming language, Kotlin might just be the language for you. In this article, we explore why Kotlin is quickly becoming a popular choice for software developers and why it offers advantages over other programming languages. We’ll discuss the benefits of Kotlin’s concise and expressive syntax, built-in null safety, and support for functional programming constructs.

Kotlin Programming Language

Kotlin is a statically typed programming language that runs on the Java Virtual Machine (JVM), and it was created by JetBrains in 2011. Since its inception, Kotlin has been steadily gaining in popularity as a viable alternative to Java, and it has been adopted by many major companies, such as Google, Uber, and Pinterest. In this article, we will be discussing three key questions about Kotlin: Is Kotlin better than Java? Why is Kotlin not popular? and Can Kotlin replace Python in the future?

Is Kotlin Better Than Java?

One of the most significant advantages of Kotlin programming language over Java is its conciseness. Kotlin allows developers to write more expressive and concise code, which in turn leads to fewer errors and faster development times. For example, Kotlin has a streamlined syntax that eliminates boilerplate code, such as semicolons and braces. Kotlin also has null safety built into the language, which means that developers don’t have to worry about null pointer exceptions that are common in Java. Additionally, Kotlin has support for functional programming constructs, which make it easier to write code that is more reusable and maintainable.

Why is Kotlin Not Popular?

While Kotlin has gained a lot of traction in recent years, it’s true that it hasn’t yet achieved the same level of popularity as some other programming languages, like Java or Python. There are a few factors that contribute to this:

  1. Java’s dominance: Java has been the dominant language for many years and is deeply ingrained in many software development ecosystems. This makes it difficult for any new language to gain widespread adoption, even one as powerful and expressive as Kotlin.

  2. Hesitancy to change: Many developers are hesitant to switch to a new language, even if it offers significant advantages over their current language of choice. This is because learning a new language takes time and effort, and there is always a risk that a new language won’t catch on in the broader development community.

  3. Lack of educational resources: Kotlin is still a relatively new language, and as such, there may be a shortage of educational resources available for developers who want to learn it. This can make it more difficult for developers to get started with Kotlin and may be a barrier to widespread adoption.
    But don’t worry, we are here to help! Kotlin Institute offers amazing courses for all levels of programmers. 

  4. Target audience: Kotlin is primarily targeted at the Android development community, and while it is gaining traction in other areas, it may not be the best choice for every development project. This narrow focus may limit Kotlin’s appeal to a broader audience.


Despite these challenges, Kotlin programming language has already been adopted by many major companies and is increasingly being used in a variety of different development projects. With its many benefits and powerful features, it’s likely that Kotlin will continue to gain in popularity in the years to come.

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Can Kotlin Replace Python In The Future?

Python has been around for over 30 years and has become the go-to language for many data science and machine learning applications. Additionally, Python has a massive community of developers and users, which makes it easy to find support and resources for any project. However, Kotlin programming language is gaining traction in the Android development community, and it is possible that it could eventually become a popular choice for building machine learning and data science applications on the JVM.


So, Kotlin is a powerful and expressive programming language that offers many advantages over Java. While it has not yet achieved the same level of popularity as Java or Python, it is gaining traction in the software development community and has already been adopted by many major companies. As more developers become familiar with Kotlin’s features and benefits, it is likely that we will see even greater adoption of this promising language in the years to come.

Popular Android Apps written in Kotlin

Here are some popular Android apps that are written in Kotlin:

  1. Trello – Trello is a popular project management app that allows teams to collaborate and track their work. It was rewritten in Kotlin in 2019.

  2. Evernote – Evernote is a note-taking app that allows users to store and organize their notes, ideas, and to-do lists. The Android version of the app was rewritten in Kotlin in 2017.

  3. Coursera – Coursera is an online learning platform that offers courses in a variety of subjects. The Android app was rewritten in Kotlin programming language in 2018.

  4. Pinterest – The Pinterest Android app was rewritten in Kotlin in 2018, and since then, the company has continued to use Kotlin for all new Android development.
  5. Gradle Build Tool – Gradle is a build tool used for building Android apps. The tool itself is written in Java and Kotlin, with a growing emphasis on Kotlin.

  6. Airbnb – The Airbnb app allows users to search for and book vacation rentals. In 2018, the company announced that they had started using Kotlin for all new Android development.

These are just a few examples, but there are many other popular Android apps that have been written using Kotlin programming language.

If you’re ready to start your Kotlin journey, you should take a look at our training catalogue! Here are some of our most popular courses:

Introduction to Kotlin

App Development with Kotlin and Java

Programming in Kotlin with Arrow

Kotlin Native – Fast Track

Kotlin for JavaScript