As another [half-]Spaniard I can confirm this. If anything, in Spain the only difference between "español" and "castellano" is context. The term "español" is mo

As another [half-]Spaniard I can confirm this. If anything, in Spain the only difference between "español" and "castellano" is context. The term "español" is mostly used when contrasting Spanish to foreign languages (inglés, francés, chino...), while "castellano" is almost always used when contrasting it to other languages of Spain (catalán, gallego, vasco, aranés...).