Was ok at first, now it takes sooo long to load a puzzle, after finishing & ads are done it freezes & can't do more until I close app & wait for awhile & try again. This is annoying, and you are WRONG by saying you need an ad after puzzle & in between. NO YOU DO NOT, it is up to you how many ads are placed in the app from get go. Sorry but uninstalling bc way too many bugs still & excessive amount of ads for such as a game of this caliper & version. :((