Ok I will take a risk. Even I wanna know whether I faced this problem due to instant apps or not. I do lot of research in order to figure out the exact issue. All of sudden I started seeing so many ads on few apps. Initially I thought it is publish by XDA only. But then I notice all ads are same in all apps. This seems strange. These are bad ads. After analyzing everything I came to conclusion that problem occurs after installing instant apps. Then I search instant apps on Google and came across XDA thread and Google playstore. I have not installed anything manually, it was automatic. I read comments ppl are saying it got install on public WiFi. I use public WiFi as well. I will comeback with my findings.
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