I'm not one of those software developers - just an ordinary user like your. That said, HL-WoD deals with the new World of Darkness (nWoD). Right now: nWoD-Mortals, Vampire the Requiem and Changeling the Lost.
Werewolf the Apocalypse is one of the oWoD game lines (one of my favourites). But I'm afraid you will rather see an implementation for Werewolf the Forsaken (nWoD) than for Werewolf the Apocalypse (oWoD).
Maybe Grapevine might a useful tool for you then.
http://www.grapevinelarp.com/