To use the application correctly, you'll need to have a rooted device and the app Busybox installed. Even if this is not the case, you can still use the application, but the check without rooted privileges is less reliable.
AndroDumpper is an application with some really interesting features. Not only does it let you verify the security of your point of access, but it also lets you see all the passwords for all the WiFi networks that you have connected to from that Android device.
Requires Android 4.0 or higher