Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Flutter
Flutter

777
897
+ 1
247
Kotlin
Kotlin

2.1K
1.5K
+ 1
269
Add tool

Flutter vs Kotlin: What are the differences?

Developers describe Flutter as "Cross-platform mobile framework from Google". Flutter is a mobile app SDK to help developers and designers build modern mobile apps for iOS and Android. On the other hand, Kotlin is detailed as "Statically typed Programming Language targeting JVM and JavaScript". Kotlin is a statically typed programming language for the JVM, Android and the browser, 100% interoperable with Java.

Flutter can be classified as a tool in the "Cross-Platform Mobile Development" category, while Kotlin is grouped under "Languages".

"Hot Reload" is the primary reason why developers consider Flutter over the competitors, whereas "Interoperable with Java" was stated as the key factor in picking Kotlin.

Flutter and Kotlin are both open source tools. Flutter with 69.5K GitHub stars and 8.11K forks on GitHub appears to be more popular than Kotlin with 28.3K GitHub stars and 3.29K GitHub forks.

According to the StackShare community, Kotlin has a broader approval, being mentioned in 268 company stacks & 210 developers stacks; compared to Flutter, which is listed in 42 company stacks and 146 developer stacks.

What is Flutter?

Flutter is a mobile app SDK to help developers and designers build modern mobile apps for iOS and Android.

What is Kotlin?

Kotlin is a statically typed programming language for the JVM, Android and the browser, 100% interoperable with Java
Get Advice Icon

Need advice about which tool to choose?Ask the StackShare community!

Why do developers choose Flutter?
Why do developers choose Kotlin?

Sign up to add, upvote and see more prosMake informed product decisions

Sign up to add, upvote and see more consMake informed product decisions

What companies use Flutter?
What companies use Kotlin?

Sign up to get full access to all the companiesMake informed product decisions

What tools integrate with Flutter?
What tools integrate with Kotlin?

Sign up to get full access to all the tool integrationsMake informed product decisions

What are some alternatives to Flutter and Kotlin?
React Native
React Native enables you to build world-class application experiences on native platforms using a consistent developer experience based on JavaScript and React. The focus of React Native is on developer efficiency across all the platforms you care about - learn once, write anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native.
Xamarin
Xamarin’s Mono-based products enable .NET developers to use their existing code, libraries and tools (including Visual Studio*), as well as skills in .NET and the C# programming language, to create mobile applications for the industry’s most widely-used mobile devices, including Android-based smartphones and tablets, iPhone, iPad and iPod Touch.
Android SDK
Android provides a rich application framework that allows you to build innovative apps and games for mobile devices in a Java language environment.
Java
Java is a programming language and computing platform first released by Sun Microsystems in 1995. There are lots of applications and websites that will not work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere!
React
Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technology stack, it's easy to try it out on a small feature in an existing project.
See all alternatives
Decisions about Flutter and Kotlin
Sezgi Uluçam
Sezgi Uluçam
Sr. Software Engineer at StackShare · | 6 upvotes · 107.5K views
Apache Cordova
Apache Cordova
PhoneGap
PhoneGap
React Native
React Native
Flutter
Flutter
#JavaScript
#MobileFrameworks
#NativeApps

For a front end dev like me, using a mobile framework for side projects makes more sense than writing a native app. I had used Apache Cordova (formerly PhoneGap) before (because React Native didn't exist yet), and was happy with it. But once React Native came out, it made more sense to go that way instead. It's more efficient and smooth, since it doesn't have the simulation overhead, and has more access to hardware features. It feels cleaner since you don't need to deal with #WebView, using native UI widgets directly. I also considered Flutter . It looks promising, but is relatively new to the game, and React Native seems more stable for now.

MobileFrameworks #JavaScript NativeApps

See more
StackShare Editors
StackShare Editors
Ruby
Ruby
Go
Go
gRPC
gRPC
Kotlin
Kotlin

As the WeWork footprint continued to expand, in mid-2018 the team began to explore the next generation of identity management to handle the global scale of the business.

The team decided to vet three languages for building microservices: Go, Kotlin, and Ruby. They compared the three by building a component of an identity system in each, and assessing the performance apples-to-apples.

After building out the systems and load testing each one, the team decided to implement the new system in Go for a few reasons. In addition to better performance under heavy loads, Go, according to the team, is a simpler language that will constrain developers to simpler code. Additionally, the development lifecycle is simpler with Go, since “there is little difference between running a service directly on a dev machine, to running it in a container, to running clustered instances of the service.”

In the implementation, they the Go grpc framework to handle various common infrastructure patterns, resulting in “in a clean common server pattern that we can reuse across our microservices.”

See more
StackShare Editors
StackShare Editors
Prometheus
Prometheus
Chef
Chef
Consul
Consul
Memcached
Memcached
Hack
Hack
Swift
Swift
Hadoop
Hadoop
Terraform
Terraform
Airflow
Airflow
Apache Spark
Apache Spark
Kubernetes
Kubernetes
gRPC
gRPC
HHVM (HipHop Virtual Machine)
HHVM (HipHop Virtual Machine)
Presto
Presto
Kotlin
Kotlin
Apache Thrift
Apache Thrift

Since the beginning, Cal Henderson has been the CTO of Slack. Earlier this year, he commented on a Quora question summarizing their current stack.

Apps
  • Web: a mix of JavaScript/ES6 and React.
  • Desktop: And Electron to ship it as a desktop application.
  • Android: a mix of Java and Kotlin.
  • iOS: written in a mix of Objective C and Swift.
Backend
  • The core application and the API written in PHP/Hack that runs on HHVM.
  • The data is stored in MySQL using Vitess.
  • Caching is done using Memcached and MCRouter.
  • The search service takes help from SolrCloud, with various Java services.
  • The messaging system uses WebSockets with many services in Java and Go.
  • Load balancing is done using HAproxy with Consul for configuration.
  • Most services talk to each other over gRPC,
  • Some Thrift and JSON-over-HTTP
  • Voice and video calling service was built in Elixir.
Data warehouse
  • Built using open source tools including Presto, Spark, Airflow, Hadoop and Kafka.
Etc
See more
Gustavo Muñoz
Gustavo Muñoz
Web UI Developer at Globant · | 7 upvotes · 55.2K views
Flutter
Flutter
React
React
React Native
React Native
Dart
Dart
Android Studio
Android Studio
Visual Studio Code
Visual Studio Code
JavaScript
JavaScript
#Flare

In my modest opinion, Flutter is the future of mobile development. The framework is as important to mobile as React is to the web. And seeing that React Native does not finish taking off, I am focusing all my efforts on learning Flutter and Dart. The ecosystem is amazing. The community is crazy about Flutter. There are enough resources to learn and enjoy the framework, and the tools developed to work with it are amazing. Android Studio or Visual Studio Code has incredible plugins and Dart is a pretty straight forward and easy-to-learn language, even more, if you came from JavaScript. I admit it. I'm in love with Flutter. When you are not a designer, having a framework focused on design an pretty things is a must. And counting with tools like #flare for animations makes everything easier. It is so amazing that I wish I had a big mobile project right now at work just to use Flutter.

See more
Vaibhav Taunk
Vaibhav Taunk
Team Lead at Technovert · | 27 upvotes · 233.4K views
.NET Core
.NET Core
Angular CLI
Angular CLI
React
React
MongoDB
MongoDB
Flutter
Flutter
React Native
React Native
Postman
Postman
Markdown
Markdown
Visual Studio Code
Visual Studio Code

I am starting to become a full-stack developer, by choosing and learning .NET Core for API Development, Angular CLI / React for UI Development, MongoDB for database, as it a NoSQL DB and Flutter / React Native for Mobile App Development. Using Postman, Markdown and Visual Studio Code for development.

See more
Interest over time
Reviews of Flutter and Kotlin
No reviews found
How developers use Flutter and Kotlin
Avatar of Philtard
Philtard uses KotlinKotlin

Even though still a young language, it feels so at home sitting in the springboot frame and works with vaadin just great. And in itself it has like all the best parts of java, scala, python mixed into one.

Avatar of fileee GmbH
fileee GmbH uses KotlinKotlin

We use Kotlin both in our Android App and increasingly in our polyglot backend services.

Avatar of claudiofus
claudiofus uses KotlinKotlin

Statically typed programming language for modern multiplatform applications.

Avatar of Cirrus Labs
Cirrus Labs uses KotlinKotlin

All 20+ micro-services that power Cirrus CI are written in Kotlin.

Avatar of movix
movix uses KotlinKotlin

Unit tests, backend with Spring Boot

How much does Flutter cost?
How much does Kotlin cost?
Pricing unavailable
Pricing unavailable
News about Flutter
More news