The cavok licensing model is so simple: You do not need to buy any additional modules or functions – everything is included in each license grade. There is also no limit to the number of files that you can manage with it. And the interfaces that you can use to connect other systems to cavok are always included, too. The license grade differs according to the number of concurrent users. The cavok maintenance contract is an annual fixed-price package that includes all updates and upgrades without exception.