IF YOU ARE GOING TO GET A JIGSAW PUZZLE APP, DO NOT GET THIS ONE! This app is extremely laggy. It gives you 1 advertisement when you open a puzzle and up to about 7 throughout the puzzle. When you are finished placing the last piece, it either tries to give you another ad but just gives you a blank screen, or it just freezes the image of the puzzle. all of the advertisements are glitchy and when they are finally over, you are usually sent back to the main screen so you must watch another ad. >:(