Flutter vs Kotlin Pick Right Platform for the App Development in 2020

    Thursday, August 6, 202013 min read5429 views
    Flutter vs Kotlin Pick Right Platform for the App Development in 2020

    Mobile applications have undoubtedly become an integral part of our lives. Whether it's ordering food online, cooking a travel ticket, playing games, staying connected to our friends and families, we use several mobile applications to carry out almost all our tasks. This surging popularity has raised demands for every mobile app development company in the world to develop various types of applications, particularly cross- platforms in recent times. It is endearing that cross platforms can be accessed from multiple platforms, which is the reason for their immense popularity. The reason behind is that these applications help in reducing time, cost, and time since one code is used to develop applications for multiple platforms.

    Initially React native and Flutter were being used as a synonym as a platform for app development upon which almost all the mobile app development companies and business enthusiasts used to depend to develop a mobile application( Both Android and iOS).

    With Kotlin coming into the scene, it has made everyone ponder upon who will lead in the cross-platform app market. In this article we descriptively analyze and compare Flutter vs Kotlin, to help you figure out the right choice for your next cross-platform app development project.

    A couple of years ago, developers were mainly dependent on React Native and Flutter to develop a cross-platform application. But, the technological advances have now brought Kotlin to this race. Comes up with a plethora of features, this new technology has become developers’ favorite in no time. If you are also planning to develop a new application, for your startup or enterprise, and are confused about which platform to go with, then check out the differences given below.


    flutter vs kotlin

    Kotlin is a multiplatform and an open-source language that enables developers to share codes, data, and business logic across multiple platforms such as iOS, Web, Linux, macOS, Android, and Java Virtual Machine (JVM). It is developed by JetBrains and is known for its pragmatism platform for having functional features like Java Virtual Machine and Android combining objects.

    Kotlin was released in 2010. What started out as a small project came out with an impressive plethora of features in 2016 with its official release. The fact that it can be used for Android, iOs, Web, Desktop, and Backend development has made it developers' favorite in no time.

    The following Kotlin vs Flutter comparison guide will empower the functionality of each framework.

    Advantages of Kotlin:

    It’s a SDK, not framework

    One of the greatest benefits for choosing Kotlin over any other app development framework, is that Kotlin doesn't let you shift the application completely. One can begin working in a single module and can progressively migrate to determining the parts.

    Easy-to-understand Syntax for Sophisticated Codes

    Kotlin has a syntax that is quite similar to that of other programming languages, for example, Swift, Scala, Groovy and Java. The instinctive punctuation makes it quite easy to learn the language and compose new syntaxes in kotlin. This makes it all the more easy to trust and invest in Kotlin platform development. It makes that need substantial coding to keep up with ease.

    Inbuilt Debugging

    Kotlin's speedy compiler can glance through bugs normally and shield them from returning again.Hence, Kotlin is more secure than Java as it reports and resolves crashes immediately. Kotlin's system has already settled its impression in the application development industry.

    Reuse of Business Logic

    The facts confirm that it isn't the main apparatus that empowers one to isolate business logic and UI. Different cross stage systems like Xamarin and React Native have been offering this administration.

    In any case, the way that makes it not quite the same as others is that it utilizes shared logic and libraries beneath the UI layer. This causes portable application designers to communicate with the native environment– Swift and XCode for iOS, JavaScript for web, and Kotlin and Android Studio for Android - without utilizing any bridge and convey codes in an increasingly native manner.

    Native UI Experience

    Kotlin Multiplatform doesn't request developers to adhere to any guidance for UI creation. It empowers UI application developers to take a shot at the appearance, conduct, and execution of the application simply like they would in the event of any native activity.

    Higher Performance

    One of the advantages of considering Kotlin language for cross platform mobile app application development is that multiplatform complies code to the same platform as the target one making it execute as its native partners with ease.

    Enhanced Flexibility and Scalability

    It lets developers scale up their application and work without utilizing any VM. This makes an ideal decision for creating a mobile application while concentrating on adaptability and versatility factors.

    Integrating Additional Features

    Kotlin works outstandingly and is interoperable with Java and Java devices. If you have to add features to a current mobile application, by then instead of fixing up the entire development process or changing the stage, you can basically use Kotlin to light up the explanation.

    However, Kotlin still struggles to find a stable place in the industry, despite having these impressive advantages. Let's have a look at the reason behind it.

    Disadvantages of Kotlin

    Still in Experimental State

    Despite the fact it has been introduced in Kotlin 1.2, the SDK has not yet arrived at a stable 1.0 adaptation. It is still in a test state; making developers reluctant in choosing it for their next huge venture.

    Finite Available Libraries

    Presently, just a couple of fundamental libraries like information serialization libraries and HTTP customer libraries are accessible in the development condition. A lot more libraries like DateTime library are relied upon to enter the market with the coming of Kotlin 1.4, the replacement of Kotlin 1.3.60, making it difficult to manufacture applications consistently and easily till date.

    Need Familiarity with Other Tech Stack

    Since Kotlin multiplatform isn't intended to be a trade for all the application programming interface (API) that a platform centers around, it is required for application development companies to have essential information on every stage and API. This is again a disadvantage of picking Kotlin over Flutter and different cross-platform development alternatives.

    Higher Development Cost

    To wrap things up, the Kotlin SDK gives a few semi-native functionalities. Along these lines, it demands a huge expense to construct mobile applications, which in the end makes it not a solid match for making MVPs and application models.

    Having covered the pros and cons of Kotlin, let's highlight the features of Flutter before we dive deep into the comparison of Flutter vs Kotlin.


    flutter vs kotlin

    Flutter was Introduced in 2015, as an open-source framework with an aim to compose a commercial center for Google Fuchsia. This framework assisted in composing native applications using a single codebase.

    Flutter is perfect for developing mobile applications. The Flutter library provides a single API to characterize seeds for different frameworks. Flutter turned out to be the best cross-platform for app development in no time because the Google UI revolves market difficulties and winning motive. Flutter has some impressive features, let's elaborate on the essence of the flutter framework.

    Advantages of Flutter

    Open-Source and Free to Use

    Both Flutter and Dart, an underlying programming language, are open-source and free to utilize. This engages developers to see the documentation, post their inquiries in the open developers forum where they can learn and execute the code.

    Hot Reload Functionality

    Perhaps the most compelling motivation why Google Flutter is favored by mobile app development companies is its hot reloading feature. The feature makes it simpler for anybody to roll out any development at the backend and view the distinction at the front-end at the same time. This helps in deciding whether the change looks impeccable with different components of the application or not.

    Highly Customisable

    Investing in flutter app development gives the opportunity to the developers to utilize various gadgets in the improvement condition. This makes it simpler for them to make portability arrangements that are quicker and have tweaked look and feel.

    Lower Development Timeline and Cost

    One of the prime advantages of concentrating on Flutter advancement is that it renders chances to make local like applications for the two iOS and Android utilizing a solitary codebase, that makes the expense to make a Flutter mobile application significantly low.

    Support for Google Firebase

    Flutter empowers developers to include backend office into the development environment, with the Firebase integration

    Suitable for Creating MVPs and App Prototypes.

    Flutter offers the usefulness of building an application for both Android and iOS stages in less time, cost, and exertion. This makes Flutter an ideal choice for MVP improvement and making models that can be utilized to try things out or raise fundings.

    Disadvantages of Flutter

    Bigger App Size

    The main drawback for not choosing Flutter for your Flutter for your application development plan is that the application size is too large. Contrasted with React Native and Xamarin, even the discharge record size of 'Hi World' application in this structure is around 6.7MB.

    Coding is Done in Dart

    There's no way that we can deny that Dart is anything but difficult to learn and quicker to execute. However, it isn't yet as well known as its counterparts– Java, C#, JavaScript, and C. This keeps developers from enlisting the best dart programming courses and land into the Flutter business.

    After having touched base on both, let’s compare and see which is a better platform for mobile development – Kotlin vs Flutter.

    Comparison between Flutter vs Kotlin for Mobile App Development

    Flutter vs Kotlin: UI Experience

    Using Kotlin, UI originators can go after the application's appearance, direct, and execution, just the way where they need it. Kotlin doesn't put any conditions or rules, and from now on developers can use their nearby libraries and apparatuses as opposed to building new ones.

    On the other hand, Flutter is a SDK, which primarily enables UI coordinated gadgets. It has diverse in-fabricated devices and dev conditions, which are open for the originators to use. With Flutter application development coders can construct convenient flexible arrangements with a custom look and feel.

    While building up an application in Kotlin, you don't have to make any UI as the developer will deal with the behavior, look, and execution of your application. As opposed to Flutter, where the application development gets you different gadgets for creating mobility solutions in a quick and tweaked way.

    Flutter vs Kotlin: Performance

    Flutter offers a hot reload feature which enables developers to use a single language for both the backend and the format which makes it exceptionally simple to work with. Doing this, prompts animation speed along with numerous different advantages. Flutter’s high delivery speed has fetched it five star rating from clients.

    Kotlin on the other hand uses multiplatform code that accumulates the same configuration of that of the targeted platform and gains the productive execution of the application.

    Flutter vs Kotlin: Programming Language

    Flutter uses Dart as its programming language, which is easy to understand and hence makes Flutter very convenient to work with, however, Kotlin always has to have a developer who has knowledge of Java and some other languages.

    Flutter vs Kotlin: Market Popularity

    Despite the fact that Flutter and Kotlin both are free and open-source tools, Flutter has more prevalence than Kotlin and its energy has rapidly picking up. If we see it as a business visionary, we realize that Flutter has a better networking size than Kotlin. Flutter has 90.4k stars and 12.1k clients on GitHub whereas Kotlin has 31.k stars and 3.8k clients. Hence in the view of prevalence, it is Flutter that wins. Flutter vs Kotlin: Learning Curve

    The availability of various Kotlin learning courses offered by Google lately and the feature of Kotlin to be interoperable with Java gives the platform an extra point in the comparison. However, Kotlin is a relatively new ecosystem with limited resources, so Flutter is the one that wins this race.

    Flutter vs Kotlin: Integration

    Flutter organizes quickly and viably with both Android and iOS systems. At the point when engineers are required to set up a progressed application idea they can use Flutter for MVP advancement. This procedure will give them a scope of application development achievement. Flutter needs to utilize outsider devices and libraries as it is a UI improvement instrument.

    Kotlin multiplatform possesses built-in tools and third-party libraries, which implies you don't have to look anyplace else for the equivalent.

    Flutter vs Kotlin: Learning Curve

    As far as the learning curve is concerned Kotlin undeniably wins for it being interoperable with Java. Besides this, a few months back, Google offers several learning courses to build that scope for improvement. However, when it comes to talking about practicality, the situation is somewhat different. With Kotlin being a new ecosystem with limited resources available, Flutter has the higher stand in this.

    Flutter vs Kotlin: Minimum supported Platform

    With Flutter, developers can make use-cases for mobile applications (Android and iOS), and web applications. In any case, Flutter doesn't support TV (tvOS), Android Auto, CarOS, or smartwatch OS.However, Application developers can use Kotlin for applications past mobile gadgets, like TV, smartwatch, etc without having the requirement of any other special feature.

    For the development of both the cross-stage mobile applications, both these platforms are known to be strong and perfect to reduce the time and cost of the application by advanced application execution.In spite of the fact that both the systems – Flutter vs Kotlin ideas are satisfactory, cross-stage application development forms are depended upon to show up at its significance in the near future.

    Flutter vs Kotlin: Scope in the development

    While comparing the scope of Kotlin and Flutter in the backend development, it is fairly obvious that the former is ahead of the latter.

    Both Kotlin and Flutter are supported by Google and are created to develop mobile applications for various platforms. You can study their similarities, dissimilarities, pros, cons, and different features and pointers that are given in this article to choose your platform for a custom Mobile app development project.

    Documentation and Community Support

    Compared to Flutter, Kotlin multi platform is still new and still in a testing stage. Along these lines, the documentation and network support for the Kotlin is to some degree lagging behind +Flutter. However, it is normal that the documentation just as network quality will improve once the multiplatform gets steady; further reassuring all to utilize Kotlin for cross-stage advancement.


    With the rise of mobile app development both have improved themselves with each new release. Flutter and Kotlin have their own essence and we are excited to witness what's new in the upcoming releases. After having listed out the features and comparisons, it should be easier for anyone to figure out which framework suits the best for their own app development.

    Also Check out our Article: Comparison Between Flutter Vs React Native For Mobile App Development


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