Ad on Stock Samsung Dialer

[AC Question]

I have never added a third party dialer to my Galaxy s7 but all of a sudden after I complete and hang up any call, there is a full screen ad that pops up! Its driving me crazy. HELP

 

[nahoku]

Probably an app you installed and not the Samsung dialer. More than likely an app is sensing the phone has just being used and since most people look at the phone after they hang up, it's a perfect time to show an ad. No advice other than checking what apps are running at the time the ad pops up, or start uninstalling apps one at a time until the popup quits appearing.