Hickory Dickory Dock for the iPhone/iPad is FREE for a limited time. Your child can learn to read a clock to the nearest hour while playing with an adorable, purple mouse. Kids begin by setting the time on the clock. For each hour there is an exploration that sends the lovable little mouse bouncing, springing and sleeping his way through the nursery rhyme accompanied by catchy music, sounds effects, and fun animations. The explorations in Hickory Dickory Dock simulate principles of physics –  gravity, collision, friction, weight, etc. as kids play pinball with the mouse, balance weights on a set of scales, and bounce the mouse off the walls of the clock. Very cute for preschoolers – a fun way to learn how to tell time with some physics slipped in as a bonus 🙂