ABP blocks all ads in my ASUS tablet running Android 4.2.2.
ABP does not block any ads in my Samsung Galaxy Tab 4 running Android 4.4.2.
ABP does not block any ads in my HTC One (M8) running Android 5.0.2.
All devices are subscribed to same filter.
The only difference is the operating system version and for my ASUS tablet I had to setup localhost and port.
I hope the developers will build a better version of ABP that works in more devices.