Kotlin vs Flutter

It is a thing of the past when cross-platform applications could only be developed using React Native. This happened because the developers and the ones involved in business have started examining more routes through mobile app development for reaching a broader audience across the entire globe.

Nevertheless, today, Kotlin has understood how to enter the opposition while also providing everyone a vast choice with other frameworks like Flutter. From Google’s headquarters, Flutter has made its impression across the globe among the cross-platform app developers.

On the other hand, according to Statista, Kotlin comes in the top 10 most wanted programming languages among developers worldwide as of 2020.

In recent times, mobile application development has come to be the most fundamental part of businesses of all sizes. Companies have realized that well-designed apps can acquire a secure connection with new customers.

If someone is planning to invest in mobile application development, the pressing question one may have is, which is the best framework for developing a highly performing application?

A majority of those involved in mobile app development will recommend React Native or Flutter for low-cost app development. Mobile app development companies were mostly dependent upon these two top app development frameworks. Today, a new competitor has penetrated the market and courageously taken over the place: Kotlin. It is time for Kotlin app development to create a buzz in the market.

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

About Kotlin

JetBrains developed Kotlin, and it is a general-purpose, open-source programming language. It is statistically typed as a pragmatic platform for Java Virtual Machine and Android, coupling object-oriented and functional features.

Kotlin was released in 2010 with a small project; its first official release came in 2016. Kotlin Multiplatform is an essential Kotlin feature that complies with the JVM bytecode, JavaScript, or LLVM code.

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

About Flutter

Flutter was introduced back in 2015; Flutter is an open-source framework that had an aim to compose a commercial center for Google Fuchsia.

Flutter is an ideal system for iOS, Android, Web, and Desktop-based app development. The library it has offers a solitary API to distinguish seeds for different frameworks on the double.

Google UI system pivots around winning market difficulties. Due to this reason, Flutter transformed into a perfect cross-platform mobile app development within a brief timeframe.


Flutter: One of the most significant benefits of using Flutter is that it presents organizations with hot reloading functionality. The functionality leads to make it simple for the users to execute any modifications at the backend and view the difference at the front-end simultaneously. In this manner, it becomes easy to decide if the looks are perfect for the elements of applications.

Kotlin: One great advantage of using kotlin for cross-platform development is that the multiplatform organizes the code to the explicit with the same format as the targeted platform. This makes it a stable platform for superior performance in their native counterparts.

UI Experience

Flutter: Flutter is regarded as the tool for cross-platform developments. Hence, developers ook for a variety of widgets available on the platform to customize the app interface. With Flutter, developers can get a chance to use various widgets for app development, making the app development process far more comfortable and quicker. Flutter comes with an advanced SDK to customize the app that fits your business needs.

Kotlin: Its multiplatform gives the UI developers freedom to craft a unique and highly effective mobility solution without the need to follow any constraints or set-in-stone instructions. Developers can build an app that perfectly fits your vision.

Pros and cons of Kotlin


Kotlin is an SDK and not a framework; therefore, it is unnecessary to move the complete app to the platform. One can start working even with a single characteristic.

Kotlin bears a resemblance to Scala and Swift, making it easy to learn and design a cross-platform app using a multi-frame.

UI creation is not restricted in Kotlin; one can work on any aspect of the app without limitations.


There are fewer libraries in hand right now as Kotlin is still a fledgling. Once Date TimeLibrary comes situation will improve, App developers must be spruced up to understand each platform and API to manage Kotlin better.

Pros and Cons of Flutter


  • Operating cost and development costs are considerably lower because of native-like apps with single based code.
  • With numerous widgets, Flutter can produce customized facilities to its users.
  • As Flutter assists in developing apps for both Android and iOS in a minimum period, it thus fits for MVP development.


  • The language employed, Dart, is still unfamiliar to all the app developers, and this is quite a barrier.
  • The framework size is vast; therefore, the apps are much more prominent in dimensions, which is detrimental in app development today.


Flutter: Flutter provides the user with the functionality of building the app with both Android and iOS, with fewer cost, time, and efforts. This feature empowers Flutter to make a perfect option for MVP development and creating a prototype that is used for testing.

Kotlin: The Kotlin framework provides the user with multiplatform function and acts within the native ecosystem rather than constructing one. Therefore, all the app experts can operate with the same tools and libraries they have been utilizing during the native development, involving Jetpack Compose and SwiftUI.

This means that they require third-party libraries and the tools to bridge a combination with the native environment. However, it involves a Flutter cross-platform SDK, which is presented basically as a UI development tool.

“Related Post: Comparison between Kotlin or React Native”


While there will always be a debate and difference of opinions considering which platform is the best, one should stop and think for a moment: how do you define best? What may be suitable for someone may not be the same for others. Selecting the right platform always depends on the type of project and its fundamental requirements. Look for the right set of qualities that these platforms possess and match them with your requirement; you will have the perfect combination.

written by for Android, Mobile Development section(s).