Adds after every puzzle. Dumb. Not to mention in the time I played it was nothing like the adds. I was expecting to see puzzles where you have to fill in the shapes. Nope. Just a big grid where you have to try to make lines up or down (think of Tetris)or completely fill in a grid. Really no skill involved, just luck, hoping you get pieces that match the spaces you have. And guess what? You'll never get pieces you need. Went an entire game, never got the one specific piece I needed. Uninstalled