What is the difference between Perpetual and Annual Subscription license ?
Perpetual License, like the name says, it is meant for perpetual use, which means you may maintain the installation even after your upgrade service is expired. It is ideal for corporations that demand continuous assessment of their Web Applications. Annual Subscription is a flexible license that allows you to use N-Stalker for a period of one (1) year like a service. After subscription period is over, N-Stalker Scanner should be removed from the installed machine otherwise service must be extended.
