Sometime we need to get the package name of an android APK file for any purpose. We can use package name to launch or open external android app from within android app.
Using adb tool to connect your android. You can open terminal direct from folder sdk/platform-tools then use this command
pm list packages -f
And you will get bunchs of list from app which installed on android device 😀
or you can just take a look the link from app in playstore like this
se the bold text, that is your package name.