This is my first try with android firewalls, I like packesave it works and have a nice colorful ui :)
Easy Simply select the apps to allow or block and when to do it. Easy as . . .
Add custom filter.
Added the option to be notified when the save operation is stopped by the system .
Added the option to automatically resume the save operation at the time of the screen OFF.
Adding multiple apps to category at onceis supported.