This application won 2nd place in 2010's Best App Ever Awards for Educational Apps.
24x7digital actually provides a whole line of fantastic educational apps, that are appropriately graded for Toddlers, Kindergarten, 1st grade and more.
This particular application focuses on rudimentary spelling, addition, subtraction and vocabulary that every kindergartener should have. In fact, it actually slightly overreaches the kindergarten grade and is sure to put your child ahead of the class.
This application is meant to be used with an adult to begin with, as the lessons are more like a quiz which test the student's knowledge of the subjects mentioned above. Done alone, without an adult, your child will still learn the correct answers to the questions because of the mouse "teacher", who will help guide him or her to the correct answer.
The games are simple and varied and the student gets rewarded with special stickers for a certain number of correct answers. In this particular level of education, the rewards are done as coin payments and the student learns the principles of exchange by using coins to buy items from a store.
I recommend the whole line of 24x7 educational apps, honestly, as they really do impart fundamental knowledge in a simple, fun and memorable way.
Compatible with iPhone, iPad, and iPod touch.