React Native is a mobile application framework that is most commonly used to develop applications for Android and iOS by enabling the use of React and native platform capabilities. These days, it’s become increasingly popular to use React across platforms on all of your properties (sometimes the same code), including any mobile applications a company has to offer.

Identify apps using react:

React Native Application will have an entry in the AndroidManifest.xml file for: "com.facebook.com.react" and many files will likely have the extension “.bundle” in the assets folder.

Attacking react

Identify apps using Flutter:

A Flutter Application will have an “io.flutter” folder from decompiling the app. libflutter.so in ‘./lib/’ and “flutter.embedding” entry in the AndroidManifest.xml file.

Attacking Flutter

Identify apps using Codova:

A Codova application will likely have a folder named “www” in the assets folder and references to “cordova” in it.

Identify apps using Xamarin:

A Xamarin app will have an “assemblies” directory with references to Xamarin.*.dll