Do I need Android for Flutter?

It is not neccessary, but advised to install Android Studio for Flutter. It makes it very easy to install and configure all the settings etc. What you definitely need is the Android SDK and JDK. You can definitely install and run flutter without Android Studio (you can also use Visual Studio).

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Is it Flutter free?

Flutter is Google’s portable UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source .

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