There's a frequent (but by no means universal) distinction drawn between "applications" and "utilities". In the former case, you have repeated interaction with

There's a frequent (but by no means universal) distinction drawn between "applications" and "utilities". In the former case, you have repeated interaction with a single process, typically with some measure of "ownership" of its display port. On the other hand, a utility typically does a single thing, produces some output, and then exits.