It's for education purpose. and it's 2th project, Code available on github.
😊👋Bye Happy learning..
What's Flutter ?
Flutter is an open-source UI SDK created by Google. It is used to develop applications for Android and iOS from a single codebase. Flutter offers native performance, Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts to provide full native performance on both iOS and Android.

Flutter uses plugins to provide access to a wide range of platform-specific services. Plugins enable you to access services and APIs on each platform. The google_mobile_ads plugin supports loading and displaying banner, interstitial, rewarded, and native ads using the Ads API.

What you'll learn
• How to configure the google_mobile_Ads plugin
• How to implement a banner, interstitial and rewarded ads in a Flutter app

What you'll need
• Android Studio 4.1 or later ( you will also Visual Studio Code if you want. )
• Xcode 12 or later (for iOS development)

Flutter AdKit Highlight:
• Introduction
• Setup the development environment
• Setup the app
• Learn about the Test Ads Unit and benefit.
• Enable Test Ads Unit in app
• Create Ads Units on Ads API.
• Add the Google Mobile Ads Flutter plugin

⭐ Bones Code ⭐
• Helper class for ads.(it help to manage Unit ID of both platform IOS & Android. )

• Add a Helper class in project
• Initialize the google_mobile_Ads SDK
• Add a banner ad
• Add a interstitial ad
• Add a rewarded ad