This app is great for Pre-schoolers not only to recognize numbers and letters but to also write them. The letter and word association is a wonderful tool. The colors are vibrant and the animation appropriate. The narration is pleasant and calming. This app is a great tool to assist preschoolers in getting ready for kindergarten. I like the opportunity for the child to practice the letter and number on their own after tracing it with the assistance of the dotted line.