Yes. Thanks for the suggestion.
I suppose my first thought was 'ask ocforums' -- my second thought was 'do a search,' -- then I reversed the two because I love EarthDog so much and want to make him happy, every day.
My third thought is to test them, I can do the five in ED's link or if you have an additional one, just post.
The test functionality is simple data going out intercept.
Even on PC, the best firewall software is an absolute nightmare with default settings, I mean horror-movie stuff nightmare (Comodo Firewall).
But properly adjusted (with a reusable settings file) it does the best job of intercepting third party apps and not Windows operating system stuff.
So the goal is to find an equivalent on Android.
Comodo has an Android app but the goal is also not to install a comprehensive suite hog of everything which is what some of them, (Comodo included) are.
Just phone home intercept of the few third party apk's that people install from Google Playstore.