Autodesk Estudiantes !link! -
It looks like you are referring to the program (often searched as "Autodesk Estudiantes" in Spanish-speaking regions).
Herramienta esencial para el Modelado de Información de Construcción (BIM). autodesk estudiantes
While the software is free, it is not for commercial use. Files saved with the student version will output a watermark stating "PRODUCED BY AN AUTODESK STUDENT VERSION" when printed or plotted. It looks like you are referring to the