Yep.
One is a stiff ski, the other is a softer ski.
Both are good all-mountain skis, both can be taken into the pipe and park, though neither is necessarily most at home there.
If you're bigger, say above 175 lbs. then you'd definitely want Karmas. If you're smaller, say below 150 lbs. then you'd definitely want the Foils.
If you're in the middle between 150-175 lbs. then you can get away with either as long as you pay attention to length, a little short on Karmas, and a little long on Foils.