licenses of Prizm

Hello everyone
I do not have much experience in canopy, someone can help me.
Currently counting on 6 AP mounted on a closter and need to install for the first time Prizm Ver. 3.0.

¿Should I buy a license for each AP?
I already have the server where I have to be fitted with the necessary data such as the IP and MAC.

¿For the SM should buy something else?

You need licenses for everything your going to manage, minus SMs. Backhauls and APs will use a license.

I believe if you purchase Prizm you get 10 licenses included. At least that’s how it was when we set it up.