the top 1000 apps on the Play Store are written in Kotlin. Google itself has 60 apps written in Kotlin, including Maps and Drive. Many Android apps, such as Google's Home, are in the process of being migrated to Kotlin, and therefore use both Kotlin and Java. Kotlin on Android is seen as beneficial for its null-pointer safety as well as for its features that make for shorter, more readable code. In addition to its prominent use on Android, Kotlin is gaining traction in server-side development. The Spring Framework officially added Kotlin support with version 5 on 4 January 2017. To further support Kotlin, Spring has translated all its documentation to Kotlin and added built-in support for many Kotlin-specific features such as coroutines. In addition to Spring, JetBrains has produced a Kotlin-first framework called Ktor for building web applications. In 2020, JetBrains found in a survey of developers who use Kotlin that 56% were using Kotlin for mobile apps, while 47% were using it for a web back-end. Just over a third of all Kotlin developers said that they were migrating to Kotlin from another language. Most Kotlin users were targeting Android (or otherwise on the JVM), with only 6% using Kotlin Native. Adoption In 2018, Kotlin was the fastest growing language on GitHub with 2.6 times more developers compared to 2017. It is the fourth most loved programming language according to the 2020 Stack Overflow Developer Survey. Kotlin was also awarded the O'Reilly Open Source Software Conference Breakout Award for 2019. Many companies/organizations have used Kotlin for backend development: Google Norwegian Tax Administration Gradle Amazon Cash App JetBrains Flux Allegro OLX Shazam Pivotal Rocket Travel Meshcloud Zalando Some companies/organizations have used Kotlin for web development: JetBrains Data2viz Fritz2 Barclay's Bank A number of companies have publicly stated they were using Kotlin: DripStat Basecamp Pinterest Coursera Netflix Uber Cash App Trello Duolingo Corda, a distributed ledger developed by a consortium of well-known banks (such as Goldman Sachs, Wells Fargo, J.P. Morgan, Deutsche Bank, UBS, HSBC, BNP Paribas, Société Générale), has over 90% Kotlin code in its codebase. See also Comparison of programming languages References This article contains quotations from Kotlin tutorials which are released under an Apache 2.0 license. External links 2011 software Free software projects High-level programming languages Java programming language family JVM programming languages Object-oriented programming languages Programming languages Programming languages created in 2011 Software using the Apache