Not nessacerily the same as an androgyne, but they both appear androgynous.
Genderless people may or may not pursue hormone replacement therapy and/or surgery. They usually want people to refer to them with gender neutral pronouns, instead of he or she.
Bob: Are you a boy or a girl?
Alex: Neither, i'm genderless. Gender is for foooools! :D
Rundino: I am a girl.
Plonk: But by friend, Megan, was going to ask you out!
Rundino: The truth is...I am genderless.
Plonk: Oh, ok.