Sup Fun App, but... – Dragons Evolution-Merge Dino! Review

My 9 year old daughter LOVES this app. She had me download it and I love it as well. I would have given this app 5 stars except that there is a completely inappropriate ad that is played in this game. This app is rated 4+ and they are showing an ad for an app rated 18+. This really makes me mad. It is a very sexually- explicit ad that needs to be removed from this app. It usually seems to show up when you choose the option to get free stuff by watching an ad. Totally ridiculous. I just saw it 4 times in a row while doing my free daily spins on the wheel to win prizes. ????
Review by Why I need nickname on Dragons Evolution-Merge Dino!.