This app would be one of the best word games on the market if not for the constant locking up. This is the first word game that I have found that adds to the challenge of seeing the words in the jumble. Letters are displayed in 3D block form on a lattace work of immovable blocks. Your challenge is to not only figure out what word or words you need to make from the available letters, but also figure out which of those words you can move actually move into place.As for the constant crashing, you can force quit the game and start back up from almost the same spot but why can’t the programer write a fix. I would have bought it if not for the lock up.