Do yourself a favor. Root your device (you won't lose anything) and download AdAway (it's free but requires root). It's not available on the Google App store but search for it on the web. I just did this today and am blown away. This app uses a host list and has completely wiped out ads on all apps I have tried so far. It doesn't even show a box where there ads should be. They are just gone. Banner ads, full page ads, video ads, gone. Even better, it doesn't use a proxy so games I couldn't use with APB (even when turned off) work fine.
I tired ABP and it was a mess. It blocked ads in one app only and wouldn't let me play one of my games, even when I turned it off. Then I would get random notification that it wasn't blocking ads on Wi-FI and a date of somewhere in 2017. No idea what that means.
I usually don't buy apps and although this AdAway is free, I am going to donate something. It was just getting ridiculous with every app I used constantly throwing full page ads or worse full page video ads every time you did something.
The advertisers are crying that people are blocking ads and that they made a mistake making them so obnoxious. They are only saying that because people are using ad blockers on the web but they sure aren't doing a thing to tone down ads on Android apps. They are getting worse and worse,