Kotlin vs Flutter: Pick the Right Platform for 2024

Gone are the days when cross-platform applications could only be developed utilizing React Native. This was because coders and businessmen are exploring more ways through mobile app development to reach a wider audience across the globe.  Be that as it may, today, Kotlin has likewise figured out how to enter the opposition, giving everyone a […]

Updated 8 March 2024


CTO at Appventurez

Gone are the days when cross-platform applications could only be developed utilizing React Native. This was because coders and businessmen are exploring more ways through mobile app development to reach a wider audience across the globe. 

Be that as it may, today, Kotlin has likewise figured out how to enter the opposition, giving everyone a profound choice with other frameworks like ‘Flutter’. Powered by Google, Flutter is making its impression across the globe among cross-platform solutions experts.

Presently, in this article, we will speak distinctly about the Kotlin vs Flutter analysis and assist you with finding the correct alternative for your cross-platform mobile app development.

Before starting with the Kotlin vs Flutter comparison, let’s begin by discussing them one by one:

What is Kotlin?

Developed by JetBrains, Kotlin is a general-purpose, open-source language. It is statistically typed as a ‘pragmatic’ platform for the latest mobile app development technologies like Java Virtual Machine and Android combining object-oriented/functional features.

Released in 2010 with a small project, its first official release came in 2016. Multiplatform compatibility is one of the important features of Kotlin that complies with the JVM bytecode, JavaScript, or LLVM code. The framework is the answer to those developers who think – ‘which is better Kotlin or Flutter’.

This is why it can be ideally used for Android, iOS, Web, Desktop, and Backend development in Java frameworks.

More on this Kotlin vs Flutter comparison guide, here are the advantages of Kotlin that will empower its functionality for the developers.

Advantages of Kotlin

A Complete SDK, rather than a framework 

At the point when you intend to construct your application in Kotlin, there is no compelling reason to move the total application. While discussing – how is Kotlin better than Java, developers should know this framework is a complete SDK.

developers you recruit to begin with a solitary module, choose the working model, and afterward logically relocate various parts. 

Basic Language 

Kotlin has its sentence structure very much like programming languages like Swift, Java, Groovy, and Scala, it is genuinely easy to comprehend the language.

Reuse of the Logic 

This isn’t the main technology that permits isolating UI and undertaking rationale. There is one thing that makes this tool not quite the same as others, for example, common entities and libraries inside the UI layer.

This makes the Kotlin coders cooperate in the native environmental factors: 

  1. Swift and XCode for iOS 
  2. JavaScript for the Internet 
  3. Kotlin data
  4. Android Studio 

This is managed without using any extension in an additional native way. 

Native UI Expertise 

Kotlin Multiplatform doesn’t request any guidelines for making UI. The Kotlin coders can deal with the plan, appearance, and proficiency of the machine easily. 

Adaptability and Flexibility 

The developers can scale up the applications without using any virtual machine (VM). This shows that it is a perfect decision for making an application where adaptability and adaptability are vital.

Disadvantages of Kotlin

Generally New Language 

When you compare Java vs Kotlin, you will find that they share a few similarities, employing a Java developer isn’t equivalent to enlisting a Kotlin-keen coder. Since the programming language is moderately new, the current recruiting request enormously surpasses the quantity of accessible Kotlin developers.

Slow Compilation Speed 

In uncommon cases, Kotlin beats Java in aggregation speeds, yet it’s oftentimes much slower. When assembling steady changes, Kotlin makes a nice showing, however, it’s as yet not as snappy as a portion of the other present-day choices, similar to Flutter. 

Feeble Support of Native 

At present, Kotlin isn’t exceptionally strong of Native. While the Kotlin/Native product is extending, it’s inadequate with regards to highlighting the developer’s need, similar to a Kotlin-based, stage autonomous GUI.

As this popular framework is trending due to its simplicity, developers still think – ‘about why Kotlin is better than Java’. The answer is written in the next section where the communities will explore the situation where they need Kotlin and not just Java.

When to use Kotlin?

Integrating Additional Features

Kotlin functions admirably and is interoperable with Java and Java tools. If you need to add highlights to a current mobile app, at that point as opposed to patching up the whole development process or changing the platform, you can essentially utilize Kotlin to illuminate the reason. 

Easy-to-understand Syntax for Sophisticated Codes 

With instinctive punctuation, it is anything but difficult to compose and convey new syntaxes in Kotlin. For applications that require substantial coding, Kotlin is easy to keep up with. 

Inbuilt Debugging 

Kotlin’s fall-flat quick compiler can look through bugs naturally and keeps them from coming back once more. Along these lines, Kotlin is more secure than Java and reports and resolves crashes right away.

Kotlin’s framework has already established its footprint in the app development industry. Developers are considering it as a future development asset as well.

A few years ago, developers used to compare Kotlin vs Java. However, they end up using Kotlin to utilize more features in the app development process.

Here are the Worldwide Popular Apps built on Kotlin:

Apps built on Kotlin

Kotlin has fixed a significant number of the bothering issues present inside the Java language. For instance, the invalid references in this framework are constrained by the required app development platform.

Kotlin has appropriate capacity types and it has no crude elements. The clusters in Kotlin are invariant. It likewise doesn’t have checked special cases, for example, what Java has.

With this secured, we should take a recap of Flutter before jumping further into the market to know the Kotlin vs Flutter relationship.

As we talked about Kotlin so far, the next section will give details about the Flutter framework. Under the benefits of Google, let’s see what it has for the developers:

What is Flutter?

Introduced in 2015, Flutter is an open-source framework that aims to compose a commercial center for Google Fuchsia. This SDK assists with making cross-platform applications, web, and work areas using a solitary codebase. 

Flutter is a system perfect for desktop-based, web, iOS, and Android app development solutions. Its library offers a solitary API to characterize seeds for different frameworks on the double. The framework is a solution for the coders who think of key features of Flutter.

Google’s UI system centers around winning innovation and market difficulties. Because of this Flutter turned into a perfect cross-platform app development inside a brief timeframe.

Moreover, several advantages will elaborate on the essence of the flutter framework. Here are they:

Top Advantages of Flutter

Easy to utilize 

Flutter framework is a free and open-source framework that permits analysis, modifying inquiries inside the open developer conversation board, and afterward usage of the code. And hence, it’s one of the top advantages of Flutter while being a perfect cross-platform framework.

Reload Performance 

Beginning to reload execution is one reason why Flutter has become well known. This exhibition makes it simple for everybody to make backend changes and break down the front-end classification.

This is also one of the top features of Flutter that decides if the change is perfect with different segments of the machine or not. Hence, developers can easily recognize the uses of cross platform mobile development frameworks like Flutter.

Exceptionally Customizable 

At the point when you add resources into Flutter, app developers utilize various gadgets in it. This causes them to make portability that gives a customized look and feel. 

Less Development Cost 

One of the significant advantages of Flutter app development solutions is to make native mobile apps for iOS and Android with the assistance of a solitary codebase. This aids in decreasing the app development cost. 

Google Firebase 

Firebase Integration permits Flutter application developers to give the backend office due to environmental factors. Making it a dominant framework in the Kotlin vs Flutter comparison.

Perfect for MVP and App Prototypes 

This framework helps in building Android and iOS applications in less time, cost, and vitality. This is the reason Flutter is considered the ideal alternative for MVP development and building models.

Disadvantages of Flutter

Not much popular

While developers make the most of Flutter’s advanced structure, there aren’t as numerous instructive assets and classes for exceptional coders since Dart is less well-known than Kotlin, Java, JavaScript, C#, and C. 

This can cause employing and preparing log jams. Nonetheless, Flutter’s quickly developing notoriety could invalidate this con in a matter of seconds.

App size is large

Apps built on Flutter are generally enormous, and this is an issue for developers who are making a decent attempt to assemble applications that will not occupy an excess of room on restricted IOS and Android gadgets.

Apart from these remarkable features, there are other reasons to choose this reliable framework for app development. Check them out:

When to use Flutter?

For Building a Minimum Viable Product (MVP) 

If you need to develop a mobile application in a conceivable time, you ought to go for Flutter. Be it to dazzle financial specialists or present models, Flutter is simply adequate (and quick as well) to give a clearer thought to the item. 

Convenient solutions 

The Hot Reload feature permits developers to execute code changes progressively. If you know the undertaking will require visit changes, Flutter can give you convenient solutions. 

Simple Set-up 

Kotlin framework is anything but difficult to set up, even on low-end PCs. It empowers developers to get to native features like location and camera alongside extra gadget support.

As considered a new player in the app development industry, Flutter has a bright future for developers. Google will integrate new features, and there is more to come. 

Here are the Worldwide Popular Apps built on Flutter:

Apps built on Flutter

Flutter has just become the top structure for application development, it permits you to utilize Dart and assemble cross-platform apps that have execution like the native mobile apps. Numerous organizations give custom Flutter app developers dependent on your prerequisites. 

This framework is comparatively new to the others, yet, there is a great deal of extension in the turn of events and improvement of its highlights. Its highlights are what has pulled in the new companies to adjust it and use it in their turn of events.

Comparative Analysis: Kotlin vs Flutter

UI & UX Experience

The first and foremost pointer of the Kotlin vs Flutter comparison is the experience of users and developers. Utilizing Kotlin, UI originators can take a shot at the application’s appearance, conduct, and execution, simply how they need it.

Kotlin doesn’t put any conditions or guidelines, and henceforth developers can utilize their native libraries and apparatuses instead of building new ones. 

Then again, Flutter is an SDK, which principally empowers UI-integrated devices. It has different in-fabricated gadgets and dev conditions, which are accessible for the originators to utilize.

With Flutter app development, coders can build expedient mobile solutions with a custom look and feel.


One of the key points of interest in utilizing Flutter is that it offers a hot reload choice. Through this usefulness, developers can all the while altering the backend just as they view the adjustments in the front end.

This component makes it exceptionally simple to settle on a UI decision for the developers. Also, Flutter gives a high movement speed that makes your application more wannabe. 

Be that as it may, Kotlin wins the exhibition fight between these two frameworks. The credit goes to the multiplatform code of Kotlin because it accumulates expressly in a similar configuration as that of the objective. This element of Kotlin causes it to gain the productive execution of the applications.

So, in this Kotlin vs Flutter pointer – Kotlin is the winner.

Scope of Learning

On the off chance that you consider the expectation to learn and adapt as a factor of correlation in the Flutter vs Kotlin comparison, the last unquestionably wins. An explanation is that it is interoperable with Java and Google offered different Kotlin learning courses a couple of months back. 

Be that as it may, when discussing Kotlin vs Flutter, the situation is to some degree extraordinary. The Kotlin multi-platform is another cross-platform framework and has restricted assets accessible on the lookout, in contrast with Flutter. 

Henceforth, Flutter wins the opposition in the Kotlin vs Flutter comparison.


Contrasting both these cross-platform systems/dialects, Flutter is picking up energy rapidly despite being entirely new. 

As you most likely are aware, aside from prevalence, you, as a business visionary, would be progressively keen on realizing the network size of Kotlin and Flutter. You would be flabbergasted to realize Flutter deserts Kotlin on the GitHub people group.

Kotlin has 31.k stars and 3.8k clients on GitHub, while Flutter has had the option to assemble 90.4k stars and 12.1k clients in a restricted time range. Henceforth, the victory of Kotlin vs Flutter, given its prevalence, is Flutter.


Flutter coordinates rapidly and effectively with both Android and iOS frameworks. When developers are required to establish an advanced app idea they can utilize Flutter for MVP development. This process will give them a scope of app development success.

Truly, it’s hard to believe, but it’s true! Kotlin gives a multiplatform that empowers developers to work inside their native structure. Henceforth, there is no requirement to join, and developers can utilize their native tools and libraries for their cross-platform mobile apps.

Hence, both have equal weightage in this Kotlin vs Flutter comparison factor.

Testing Support

Flutter accompanies great testing highlights to test gadgets, application coordination, and unit testing. All around depicted documentation for the equivalent is additionally accessible.

The gadget testing empowers clients to unit test the gadgets. Flutter works on Firebase, which is an effective Backend-as-a-Service. Kotlin again wins the testing test! developers use Kotlin for the unit trial of Android applications.

Minimum Supported Platform

With Flutter, developers can make use-cases for mobile applications (Android and iOS), and website development solutions. Be that as it may, Flutter doesn’t bolster TV (tvOS), Android Auto, CarOS, or smartwatch OS. 

Nonetheless, with Kotlin, there is no requirement for any other special feature. App developers can utilize Kotlin for apps past mobile devices, similar to TVs, smartwatches, and so forth.

Comparing Flutter is like having a comparative analysis between Dart vs Kotlin. For building both cross-platform as well as native mobile applications, both these platforms are known to be solid and perfect to minimize the time and cost of the application development by improving application execution. 

Though both the frameworks – Flutter vs Kotlin concepts are acceptable, cross-platform app development processes are relied upon to arrive at its greatness sooner rather than later.

This comparative analysis of the technologies might be enough to follow a verdict, still, some other factors will show their popularity in the market.

Kotlin vs Flutter: Verdict

Comparing Kotlin vs Flutter will give some interesting pointers while making them stand strong with their core features. Since they both are perfect for building cross-platform and native applications, so now, it relies upon your particular task necessities to pick between the two.

However, a more favorable and trending choice would be Flutter as Google products are becoming better day by day. Kotlin, however, is on the same level as analyzed during 2018 but Flutter is moving up on the chart every year. Rest you can pick the platform based on your business requirements. 


Q. Is Kotlin the right choice for Android app development?

Kotlin can help make your life as an Android app developer significantly simpler. While coders here and there go over the edge when utilizing the latest mobile app development frameworks, new technologies do get developers started up to construct magnificent things. What's more, with six years of development, Kotlin is basically settled among the developers' networks.

Q. How to use Flutter for app development?

As a matter of first importance, you'll need Android Studio for Android and XCode for iOS. Ensure you have Android Studio adaptation 3.0+. Presently you have to install the Flutter module: 1. Start Android Studio. 2. Open module inclinations (Preferences>Plugins on macOS, File>Settings>Plugins on Windows and Linux). 3. Select Browse storehouses, select the Flutter module and start the installation. 4. Choose Yes when provoked to introduce the Dart module. 5. Choose Restart when provoked. Presently you can make another venture for Flutter: File> New> New Flutter Project.

Q. What are the benefits of cross-platform apps?

Among the other mobile app types, cross-platform is gaining huge popularity across the globe. These apps can be installed on any device, and apart from this there are some other major benefits: 1. Codes can be reused. 2. Controls Cost. 3. Quicker development time. 4. Easier Implementation. 5. Sameness and Uniformity.

Q. Does Flutter have a Hot Reload function?

Yes. This feature allows developers to reload the whole codebase on a running app without any delay. When the coded files run on the machine, Flutter automatically displays the changes and updates on the screen according to the interface.


CTO at Appventurez

CTO and Co-Founder at Appventurez, Sitaram Sharma has 10+ years of experience in providing world-class digital solutions. As a CTO, he brought his expertise ranging from product enhancements to advanced technological integrations, while focusing on the consistent growth of the team.

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