waste of time! I used it for one purpose: to isable Whatsapp when I don't want to get any notifications and messages received would appear to the sender as not yet delivered. It blocks the app to wifi and data  but don' you dare to turn off your phone or getting it turned off due to low baterry. When you do start your phone again  rules seem to not apply or to be very slow to activate   so you get a bunch of messages that now to the sender will look as delivered. So the option is to disable data  Wifi by location? So what is the purpose to this """"""""""""""""firewall""""""""""""""""?""