With Wps Wpa Tester you'll can connect to WiFi networks which have WPS protocol enabled.
Wps Wpa Tester checks whether your network is secure connection through WPS protocol.

Check whether your network are vulnerable turn off WPS and change the password for strong and personalized.

Wps Wpa Tester needs root permissions for devices with Android version < 5.0
For devices with Android >= 5.0 you can test the PINs with this app and you can connect but you can't see WPA password without root permissions.