Changing package name of an android app is explained here, it is not hard, however, you may face error in the google-services.json file, but it is an easy fix and is explained in this site
How to Change Android App Package Name?
Change Package Name In Android Studio - Changing Package Name is a crucial part of any Android application as many of the core libraries and R.java file depends on the package name.
All Android apps have a package name. The package name uniquely identifies the app on the device; it is also unique in the Google Play store. This means that once you have published an app with this package name, you can never change it; doing so would cause your app to be treated as a brand new app, and existing users of your app will not see the newly packaged app as an update. Check the App on Google Play Store: Visit our official website, Get sou. Apk editor pro is the best alternative of apktool for android and apktool for windows.It can edit android apps without doing any setups. The best feature of this is that you can edit smali files means anyone with knowledge of smali coding can change app code. Here is the features of apk editor Features: 1. Change app name.
To change Package name of an android app, go to the Project window, right click on the app, then select Open Module Settings,
A new window will appear, select the Flavours tab in the window. this is where we will change the app package name
How To Change Package Name In Android Studio
- Select Application Id in the list, and replace it with a new package name. for example. “com.myapp.new”
- Click Ok and wait until the gradle running finish.
If you meet the error Error:Execution failed for task ':app:processAllcategoriesDebugfreeGoogleServices'. No matching client found for package name 'com.my.app.package.name.debug' Visit this link Fix no matching client found error android
How To Change Package Name In Android Studio