There is no limit on free individual, named-user academic licenses. Simply follow the instructions in How do I obtain a free academic license?
- How do I get started with an Academic license?
- How do I transfer my free academic or free trial license to a different computer?
- How do I renew my free individual academic or free trial license?
- How do I upgrade my academic license to the latest version of Gurobi?
- How do I obtain a free academic license for a cluster or a shared computer lab?