Paresh Mayani
29 October 2025
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I still remember a time when companies had to hire separate developers to write code for different platforms, such as Android or iOS. How hectic was that process? Yes, a lot. However, things have changed much faster than you think, and with the advent of AI, the pace of change has accelerated significantly. A few years ago, developing a mobile app meant selecting a native platform and hiring a separate team for Android and iOS.
But time has changed now, with the advancement of AI/ ML, now developers in this AI era are much more capable of bringing cross-platform apps to your life with innovative ideas.
Now, it's the time of cross-platform app development. With the capability of writing code once and deploying it anywhere, tools have taken the developer community by storm like a car race. Businesses love them for saving time and budget, while developers enjoy the platform due to its simplicity and core features of writing a single code.
This fast change now puts a big question: Flutter vs Kotlin - which one should you choose? This was a common issue we all used to face, right?
In this blog, we’ll discover the concepts of Flutter and Kotlin - what they are, how they are implemented, and why developers are going over them in 2025. By the end, you’ll have a clear picture of which technology fits your next app adventure.
Are you looking to build a native based app in a shorter period of time? Then, Flutter is the best option you have. Why?
Flutter is powered by the Dart Programming language, and it is being chosen by millions of Android users, due to its large selection of widgets and open-source platform. Below are some of the key features of this famous tool:
Flutter can adopt graphics much faster with the help of the Skia graphics library, which is user-friendly and improves the app's performance, too.
The key feature of Flutter as it works quickly, and by making simple changes within the app, it makes the process more convenient and eliminates the need for developers to make changes or reload the app again.
Flutter allows developers to reuse code across multiple platforms, which saves time and resources and makes it one of the best tools for developers.
Thinking of building a Flutter app? Hire Flutter app development services and experience performance-driven results firsthand.
Kotlin stands as a general-purpose, statically typed programming language that works on an open-source platform. It focuses on clarity of user experience and directly emphasizes interoperability and user security. Moreover, Kotlin uses several programming languages, such as syntax, C#, Java, and others, making it highly versatile. Key uses are mentioned as follows:
Yes, Kotlin can be easily integrated with Java files by using a script, making Kotlin the best option for developers.
As Kotlin is completely compatible with Java, you can work using Kotlin seamlessly. Also, Kotlin is seen as an upgraded and innovative version of Java.
Kotlin’s coroutine system has matured, making asynchronous programming faster and more efficient. Additionally, Kotlin Multiplatform is now widely adopted for building shared logic across Android, iOS, web, and desktop, streamlining cross-platform development.
Now, I am going to show you the comparison between Flutter and Kotlin to find the best framework for your app development needs.
Factors | Flutter | Kotlin |
Developer | JetBrains | |
Programming Language | Dart | Kotlin |
Release Status | Stable | Alpha |
Component Library | Big & Quickly Growing | Small but Rapidly Growing |
UI | Proprietary Widgets | No Preconceived Regulation |
Hot Reload | Yes | No |
GitHub | 12K+ stars, 16K+ forks | 2.8K+ stars, 300+ forks |
Costing | Free & Open-Source | Free & Open-Source |
Clientele | Google, Dream 11, Tencent, BMW | Quizlet, Philips, Yandex, Netflix |
The decision of choosing Flutter and Kotlin completely depends on your app type, features and more factors. Here are the main factors affecting the difference between these two widely used frameworks:
The primary distinction between Flutter and Kotlin lies in the app development processes. The best key feature of Flutter is allowing developers to write code once and deploy anywhere they want. Whereas Kotlin excels best for programmers who are opting for an innovative and easy-to-read language entirely for Android-specific app building.
Kotlin is being considered as a good choice for Android app development since it is a statically typed programming language, whereas Flutter, on the other hand, focuses on using Dart, which is a dynamically typed language. It makes app development more effective, advanced, faster, and easier to go.
The community of Android has evolved and has been adapted to go with the Kotlin framework due to its excellence in app development. Yes, Kotline provided you with unlimited resources, frameworks, and libraries for developers that allow them to create powerful applications. In contrast, using Dart when it comes to Flutter has a small community.
The component library of Flutter possesses a vast area that makes it excel in app development. Flutter’s library is continuously growing and has a non-inclusive base. On the other hand, Kotlin multi-platform provides a comparatively better and smoother native integration, although it has a relatively small component library. But the Kotlin library is also constantly growing.
Flutter has been used by several giant organizations that have earned global recognition. Flutter’s client brands include Google, Dream 11, Tencent, BMW, etc. When it comes to the apps built with Kotlin, the possibilities are endless. Kotlin’s clientele includes Netflix, Yandex, Philips, Quizlet, and many more international brands.
Despite all these differences between the two app development tools, there is one similarity that makes them available for a wide range of clientele. Both Kotlin and Flutter are free of cost and have an open-source framework with a wide range of developers and businesses.
Flutter has been viewed as a strong tool for creating a change in the code community and transforming the mobile app development landscape. It offers numerous features and cross-platform capabilities, providing faster performance and a UI-friendly interface. Beneath we will discuss the benefits of using Flutter in mobile apps:
The important benefit of using Flutter is that it allows developers to write the code once and deploy it anywhere.
As a developer, you can easily integrate an existing application into Flutter based on business requirements. Flutter’s exceptional flexibility lets you craft applications the way you want with specific requirements.
You can customize and create application designs through Flutter’s dynamic widget library. The widgets are not only responsive and effective but also aesthetically pleasing, with a user experience. You can undoubtedly hire Flutter app developers and see the result yourself!
The hot reload feature of Flutter makes the job much simpler and easier for app developers. You can trace the amendments done in coding without any hassle, as Flutter does not need reloading of the app state. It lets you fix potential errors and changes in the UI.
If we wonder about Kotlin vs Flutter performance, one thing is proven that Flutter has no match due to its feature of offering high-end performance. As Flutter’s code is integrated into native machine code, it helps developers to have seamless and user-friendly performance.
Kotlin is a good-to-go tool mostly preferred by developers at the time of Android app development. It aims at seamless integration, Java integration, modern development tools, and top-notch security features. Let’s check out more of Kotlin’s advantages:
Kotlin has known interoperability with the Java programming language, which stands as a robust feature of the tool. You can hire Kotlin app developers and notice how amazingly they integrate an existing Java app with Kotlin without rewriting the codebase.
Exceptional tooling like Android Studio and IntelliJ IDEA backs Kotlin, which offers modern and innovative coding aid. You can debug and refactor easily while developing an application using Kotlin.
Because of the backing it gets from Google, the community of Kotlin has witnessed swift growth. Even the brilliance of Kotlin’s frameworks and resource libraries has been praised time and again.
Kotlin multiplication allows developers to write concise code through its modern language tools. Kotlin is integrated to offer numerous features such as lambda expressions and extension functions, which further assist at the time of coding.
All the apps built with Kotlin possess inherent security measures, as the tool handles nullability in code effectively. The variables in Kotlin include non-nullability as a default feature, which ensures unmatched safety, unlike Java apps.
In the AI era of 2025, the user and clients' expectations have changed. Now they prefer smart apps that can think, learn, and adapt as per their preferences. Thus, AI is just a small part of change; the future is going to be the main backbone of modern app development.
Flutter has now evolved with TensorFlow Lite and Firebase ML, critically allowing developers to integrate machine learning models for real-time tracking systems, facial recognition, and image classification. Just think, a Flutter-powered fitness app that adjusts your workout routine based on daily activity, this is the actual power of AI, which is to be enhanced in the future.
On the other hand, Kotlin’s compatibility with AI SDKs like Google ML Kit and TensorFlow for JVM allows for continuous development of intelligent Android apps. For example, think about Netflix, the way it uses Kotlin for its personalized recommendations for its content-based theme. How cool is that?
Yes, from predictive analytics to chatbots and smart voice assistants, Flutter and Kotlin are not just coding frameworks anymore; they’re building blocks of intelligent AI.
So, if you are in search of the top flutter app development companies, Hire FlutterDev just got the rightful dedicated team offering you services within budget effectively.
Whenever we talk about Kotlin multiplatform vs Flutter, the discussion covers the dynamic features and tools of both app development platforms. We can unquestionably say that it is not a matter regarding Flutter vs Kotlin but what you require. Every business has a different need, whereas similar businesses may have similar requirements. We suggest you choose the app development tool that emphasizes those needs.
If your business requires a UI-driven cross-platform application, you should opt for Futter without a second thought. However, if your requirement suggests a multiplatform project that needs building a relatively complex application, which is also Android-friendly, you must go for Kotlin. You can get a clear outlook on Flutter app development costs by exploring our article on the cost of developing a Flutter app.
Therefore, assess the needs and choose what suits your business the best. The Flutter vs Kotlin discussion can carry on forever, but as a developer, it is your responsibility to use the one that meets your expectations.
It is a type of open-source technology built by JetBrains that enables developers to build applications for multiple platforms without rewriting code multiple times.
Yes, Dart is to be a bit faster when it comes to mobile applications, as code compiled directly into native code. However, Kotlin still holds much more efficiency when it comes to Android app building.
The decision depends on your business goals and requirements. Both tools can be used for different purposes and are largely accepted by clients. If you are looking to build Android apps, then go with Kotli, or else if planning to develop a cross-platform Flutter easily wins the race.
It completely depends on the type of application you are developing and its requirements. However, Flutter is comparatively preferable for MVP development. Flutter possesses a wide range of widgets along with aesthetically pleasing user interfaces. Moreover, its smooth functioning on multiple platforms makes Flutter a better choice.
Both Flutter and Kotlin are in demand because of their exceptional features. While Flutter is much preferred by developers who are building cross-platform apps leveraging a single codebase, Kotlin is the first choice for Android programmers. Kotlin’s Java interoperability and Google backing make it stand among the top app development tools.
Both Kotlin and Flutter are built using open-source technology for flexible app development and integration. The app development tools are free of cost for commercial use. However, if you are opting for expanded functionalities or integrating third-party APIs, you may have to pay for them.
Let’s begin a collaborative journey together where we craft Flutter applications that set benchmarks for you.
