Qlik has a perpetual license model with yearly maintenance and upgrades, while SAS VA has an annual license model. According to Gartner, SAS VA has the highest 3-year total cost of ownership. Qlik is easier for developers and end users to use, especially for creating interactive dashboards, while SAS VA is among the most difficult and time-consuming tools for content creation. Qlik supports massive data volumes through in-memory and direct discovery techniques without requiring data staging, while SAS VA also handles large data volumes.