What is it with apes

What is apk (android application package) how does it work whats the role in install and download and other bla
IS this is what i should do=
1-make the game using unity
2-Hit build and run
3-then choose android sdk folder
4-test it on mobile
5-then publish to google play
6-apk s***(???)
thanks in advance

edit: sorry about apes in the title(it is apk)

Really don’t understand what you’re asking, this is also in the wrong forum. If you have Android issues, post in the Android forum (in Platforms) You can also check our documentation on how to get started with Android development http://docs.unity3d.com/Manual/android-GettingStarted.html