XMPlus v1 and v2 Authorization
XMPlus v1 supports free use. 30 user limit, 10 nodes
Authorization
Support unlimited subdomain authorization for the domain, unlimited access and updates
NOTE: Install the free version and test with all your internet service providers if it works for you before buying full version since i cannot guarantee will work for you where ever you are.
if you want to buy authorization(onetime payment and permanent use). Buy Authorization code