Bing add in Reversi App. This is not good. =(

I was just playing Reversi Twist Free, and after each game, at the you won screen, I get a black box with "Bing Is For Doing" "Install it now". The Reversi screen in the background is greyed out. The only way to keep playing is to install Bing or click an X in the top right hand corner of the screen. I played two games and it did it both times. That's one app I won't be installing again any time soon.

OK, this is weird. In the App store there is "Reversi Twist" and "Reversi Twist Free". There is no Bing Add in the Reversi Twist. It's the same game as near as I can tell except one has the Bing Add and one doesn't. The Metro tiles are different too. The Reversi Twist Free one has a white corner with an F in it. The other one doesn't.

The free version is the one with ads, the paid version is the one WITHOUT ads.

They are both free, and the same game with the same graphics, as far as I can tell. One is named just "Reversi Twist" and the other is called "Reversi Twist Free". The "Reversi Twist Free" is the one that had the Bing nag screen in it.