Originally, I gave this app 5 stars. I have changed my mind at this point. The ads come after every level you play. Also, these ads are long and 50 seconds or more. To me that's too many because you play a level then have to wait almost a minute sometimes more just to play the next level. If this is not adjusted I will be uninstalling this app. This is frustrating to me. I need stress relief. Awesome!!!! Addictive from the beginning. Great work developers!!!!! You rock!!! 5+stars