So technically, you don’t need an IDE at all. Basically, every project has at least a build. gradle file that contains the instructions to build it. You only have to launch Gradle with the appropriate command to compile your app.

Is there any alternative for Android Studio?

IntelliJ IDEA, Visual Studio, Eclipse, Xamarin, and Xcode are the most popular alternatives and competitors to Android Studio.

Is Android Studio necessary?

You don’t specifically need Android Studio, all you need is the Android SDK, download it and set the environment variable to the SDK path for the flutter installation to recognise that.