The Android device market is growing by the day and businesses are taking advantage of their popularity by developing an Android app to sell in the market. The Google mobile operating system (OS) is designed as open-source to allow Android app developers to leverage the OS and create new, innovative apps.
Flutter is an open-source UI software development kit created by Google. It is used to develop cross platform applications for Android, iOS, Linux, Mac, Windows, Google Fuchsia, and the web from a single codebase. The first version of Flutter was known as codename "Sky" and ran on the Android operating system.
Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Kotlin is designed to interoperate fully with Java, and the JVM version of Kotlin's standard library depends on the Java Class Library, but type inference allows its syntax to be more concise.