By far the best child app I have ever purchased. It is great, educational, lots of fun, and addictive. I even enjoy it and sing along with my 3 year old. It also lasts a long time and he never tires of it. From letters, counting, colors, emotions, etc this is a great learning tool. This is the first app I have ever recommended and I do so without hesitation.
Millhouse 1007 about Busy Beavers Jukebox