Tilt your phone or tablet to roll the white ball to collide with the ball next to the correctly spelled word. If you are curious what the word means you can tap the definition button to visit the Wordnik web site to find out. This program contains 20,992 words so it is truly an app for almost all ages. Text to speech is used to reinforce auditory discrimination. This app contains no commercial ads. No personal information is gathered. There is a quit button so the app will not run in the background when you stop playing. State Standard: Recognize and use knowledge of spelling patterns when Reading.