unity pro & android pro licence?

Hi,
we planing to purchase a unity pro for andorid project. below have some question. hope someone can answer.
1) We will have a project for andorid, Should i have unity pro & unity andorid licence both? or only unity pro is ok.
2)After I purchase unity pro 5,is it free to upgrade to pro 6 or 7...in future? or i have to purchase for each version
thx a lot for anyone can help

 

1)
If you want to use the pro features on the android platform you will need unity Pro + Android Pro
2)
If you buy a license the license will give you free updates to all version in the major version.
If you buy a unity 5 license it will be for every 5.x version update.
If unity will bring out 6 you have to upgrade your license.

 

Sorry for silly question
what is "pro features on the android platform"?
I think we need some basic feature for andriod platorm only
Thx

 

http://unity3d.com/get-unity

--Eric