WriteWords has a simple opening menu that lets kids choose between numbers, capital letters, lower case letters, words in all caps, words in all lower case. Kids trace the letters with their finger, guided by a little crab that they drag for each stroke. Crab will not respond to wrong motions, and will hang around till the motion is completed. Your kid will hear praise for each completed letter – “Excellent” “great job!” as well as cute sounds for each stroke, and shaking off the letters when they complete. The app has been engaging enough for Sal to take an interest in practicing his letters and has helped certain letters like lower case e that he has ingrained a different motion pattern than normal.    From a reward perspective, it allows you to shake down the letters into a virtual hole before progressing, not a strong reward, but a fun element.  The whole app is delightful to behold. Bright background colors are juxtaposed against equally bright and scribbly child-like artwork that convey the word being spelled. You and your child will enjoy tracing your finger along those necessary building blocks of language. With its memorable artwork and way cool physics engine, it is sure to entertain and teach your child. Its got an intuitive interface for young children. It has high quality graphics and effects. I have no hesitation in recommending this app for children ready to start learning to write. To me, this is exactly the sort of app I am looking for in my quest to have apps that are fun, but teach my kids something really useful in the real world.