MedeA® is a software package developed by Materials Design Inc for atomistic simulation of materials. According to official website VASP can only be acquired legally by either purchasing a license directly OR by purchasing a license from Materials Design Inc. Medea-VASP is built on VASP but all operations are carried out not by providing files such as INCAR, KPOINTS, POSCAR, and POTCAR, but via GUI.
What are the pros and cons of using Medea-VASP over VASP directly?