What percentage of Android apps use Kotlin?

Develop Android apps with Kotlin Kotlin is a modern statically typed programming language used by over 60% of professional Android developers that helps boost productivity, developer satisfaction, and code safety.

App size on device: The amount of space required to install your app. Since apps are compressed when they’re downloaded , it can make install sizes larger than download sizes.

Overview. Each time you upload an APK using the Google Play Console, you have the option to add one or two expansion files to the APK. Each file can be up to 2GB and it can be any format you choose, but we recommend you use a compressed file to conserve bandwidth during the download.