Hello .
This is my first question
i would like to ask about something
now i finished my game on android
but i want now to add advertisements inside it
i am using unity3d (free version )
i searched a lot about (admob ) plugin
and i got finally that is just for pro version
so , how i can add advertisement inside unity
hope you help me really
cause i wasted a long time searching about this point
thanks 
.
Requirements:
Unity Pro 4.1.5 (untested on previous versions)
Google AdMob SDK for Android
AdMob publisher ID
it is for pro version
i am using free version !!!
That is the legacy version, use the new one. (I have unity free and it works)
Requirements:
Unity 4.3 (untested on previous versions)
Google Play services library, revision 13 or higher
An ad unit ID
It was a bit harder to find, so here’s a direct link to it:
https://github.com/googleads/googleads-mobile-plugins/tree/master/unity/android
Thank you, mgear
ok , now i don’t know how to download it ! ?
there is nothing called download or something like that
where is the button of download ?
how to download it ?
on right side there is download zip button:
https://github.com/googleads/googleads-mobile-plugins/archive/master.zip