Strange lucky wheel on my Whatsapp There is a strange app that appears on top of my Whatsapp (Android) on the right side, if I click on it, an lucky wheel appears on the center of the screen, as the attached image. What a heck is this, some kind of virus? I was unable to find similar image on google. Also, it is not listed on my apps. Where can I find it?
Ok, I think I've found the source, it is an ad from my Keyboard app, Go Keyboard.

It's a good keyboard app, but those ads forced me to give it a low score.