That’s why mobile will affect more than just your digital operations — it will transform your entire business.”-Thomas Husson  Android devices have been the most popular in almost every corner of the world. When it comes to the development of Android mobile applications, there is a broad array of stages that help android development; however, deciding which language to use for android application development is a difficult task. Yet, there is consistently online help accessible for Java so beginner or even experienced engineers can take help when they are confused in some code or any issue. It is an object-oriented language with features such as dynamic binding and dynamic typing, making it an appealing language for Android app development. Kotlin android language is basically contrasted with Java so a beginner can undoubtedly get it and begin fostering an application. Kotlin is a broadly useful programming language that has type obstruction and intended to work with Java language and runs on the JVM(Java Virtual Machine).