How to install and licence on Android?

Morning,

Two questions if I may...

I have 2 (of 5) licences free on my Norton Security and am wondering how to install it on my Android phone. Do I just download the Trial version from the Play store and then rattle in my licence number somewhere? Or is there another way?

Also how heavy is Norton on battery usage and background data? I currently use Avast on the phone and while it seems fine it's a pain with adverts but it is very light on battery and data.

Many thanks,

David

Done, let's see how this goes. Thanks for the quick response.

Yes download the trial version from Google play store then once you open the app you log into your account, iirc there's a cog icon for settings & such on the left side.
I have it on a Galaxy Note 4 & it seems fine, there's no harm in giving it a try as you can remove the device from your account to free up the licence if you don't like it.