The "on-premise" version of our helpdesk app allows different "number of servers" depending on the license you choose. This number of servers limit is simply the number of "production" installations. Every installed instance of Jitbit Helpdesk counts, even if you install the app multiple times on a single machine.
The "Company" and "Enterprise" licenses allow unlimited number of installations within the same company. You can install as many times as you need with these licenses. For example, if you need separate helpdesk instances for several departments, or if you need several "test" installations along with the production one.
For every additional installation in another company you have to purchase a separate license, despite the number of servers you're allowed to use with your current license. For example, if you're in the consulting business and you plan to offer our app to your clients you will need a separate license for every client. By the way feel free to contact us for reseller discounts in this case.
The "on-premise" version of our helpdesk app is not priced "per agent", unlike many of our competitors. This is the only limit we have in our license.