At Google I/O 2017, Google announced the newly added support for Kotlin programming language in Android, along with the existing languages Java and C++. As per the experts, Kotlin came as a breath of fresh air in Android development ecosystem to make “Android development faster and more fun. But, what about the numbers? How many developers are making a shift to Kotlin? Let’s find out.Realm, a mobile development platform, has shared its latest edition of the quarterly report. This report offers useful insights of current mobile development ecosystem.

Will Kotlin surpass Java on Android?

In case you look at the major programming languages being used for mobile developments, you’ll find languages like Java, Swift, Objective-C, C#, JavaScript, and Kotlin. As you can see in the graph below, Swift is making strides at a faster pace and making Objective-C disappear. This wasn’t the case too long ago. Android is about to undergo a similar change.


Since Google I/O 2017, Kotlin’s growth rate has entered into a new dimension. The percentage of developers learning and shifting to Kotlin is increasing as no one wants to be left behind.

In geographical terms, in Android ecosystem, Asia leads the pack. However, as the developers in Asian countries are more conservative in pursuing new technologies, this huge shift in Android development is expected to benefit the American developers in future.

The year of Kotlin: 2018

As per data, 20% of the apps built with Java before Google I/O are being built in Kotlin, which is a fast growth given the timeframe of 4-5 months.

“Kotlin may even change how Java is used on the server, too. In short, Android developers without Kotlin skills are at risk of being seen as dinosaurs very soon,” the report states. As per predictions, Kotlin will overtake Java in December 2018, which would be about 17 months after the official support announcement.