Labeled a "21st century rattle" by Children's Technology Review, the Sound Shaker app lets children experiment with sounds by tapping. After the child chooses a sound like a chime, whistle, barnyard animal, or drum from the main menu, each tap of the screen adds a sound in the shape of a circle until they are rolling around together. Tilting the device makes the sounds run into each other to create new sounds.

Sound Shaker is a creative way for your child to learn about sounds and also to practice listening skills. It can a be fun and useful tool for children with visual impairment to play with as well. Both young children and adults will love this app for its whimsical design and sounds that are pleasant to hear.

Available on iPad and iPhone for $1.99.

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