I would like to know whether it is technically possible, not whether it is easy or not, to change the actual package name of an Android app that is on Google Play. What I me
Nope, you cannot just change it, you would have to upload a new package as a new app. Have a look at the Google's app Talk, its name was changed to Hangouts, but the package name is still com.google.android.talk. Because it is not doable :) Cheers.