Could not find this elsewhere, this came close.
Question:
I have one domain with with an additional two subdirectories. Each of the three has it's own wordpress installation. I want to use Gravity Forms on all three installs.
eg:
http://www.mainsite.com
http://www.mainsite.com/1subdirectory
http://www.mainsite.com/2subdirectory
(3 separate WP installs...sounds crazy I guess, there is a method to the madness)
Nevertheless, is this considered a "single site" and therefore I need only purchase a "single site license"?