Using your gateway is what you do when you lose the ability to apply restrictions on your phone. And since this thread is in response to recent changes in andro

Using your gateway is what you do when you lose the ability to apply restrictions on your phone. And since this thread is in response to recent changes in android that remove users ability to control the apps on their phone I thought that was implied. Of course its ideal to not send the packets and waste the battery at all but when that's not an option, I'd rather use a firewall to block the traffic rather then just let it through, regardless of the hit to the battery due to it constantly retrying the blocked connection.