Pop ups to rate after every major win. Advertising commercials play with no indication when they will be done and aome lock up, forcing you to click the advert (against TOS i might add) go to the play store and then back into the app before the "x" option appears to close the commeecial...finally after level 49 the wins stopped cold. Why i waited before leaving a review. I got enough play time in to be able to say, the replay on the "real" games - i.e. after your grace period - is terrible.