Monkey Preschool Lunchbox
I first discovered Monkey Preschool Lunchbox on my Android phone. My son loved it, so I knew it was a no-brainer to get for the iPad.
The seven games have lessons about colors, letters, counting, sizes, shapes, differences, and matching. Plus, there's a cute monkey sidekick, music, and voice recordings.
After a couple of rounds, kids are rewarded with a sticker that they place on a whiteboard. My son not only filled the board with stickers, but also left Daddy with a low battery.
Monkey Preschool Lunchbox (99 cents)