Piratear Wifi (yes, that's really the name of this app) is an app created to, well, hack into WiFi networks. Unfortunately, its excellent name has no effect on its ability to actually hack into WiFi networks, so it's no better than other apps of this type. That is to say, with this app, the vast majority of WiFi networks will stay secure despite your best efforts; only networks with default passwords or which use a very specific router model will be at risk. Just like always.
Piratear Wifi does not live up to its name - much to the contrary, in fact. It has more features than other apps of this kind, but it's uglier and has more ads. Pass.