RedViking
Nord of the South
What none of you are realising is that adverts from apps are getting more intrusive, and not dodgy ones from dodgy sites, but direct from the play store.
The only solution I have found is to switch off your internet access unless you are running an app that absolutely requires it to function (and try to get rid of as many of those as you can).
Installing a popup blocker in the browser will not help as they are not browser related adverts, but from the bloody apps you have running in the background, and there is nothing that I have discovered that can block them.
I have NEVER had this issue. If you are talking about in-app adverts, those should NEVER be displayed outside of the app, specially from the Play Store. If you find an app with malware report it to Google.