Baby Signs Video (ASL) – Learning American Sign Language for Children (iOS 3.0): Parents are discovering the benefits that children receive from learning to sign. The ability to communicate from an early age can improve self-esteem, boost, vocabulary, and reinforce the bond between a child and a parent. This app is meant for parents to improve their own signing abilities. Signs (over 200 words) are grouped alphabetically and categorically, and are searchable. Parents can test their knowledge with the handy quiz mode. And the video style makes learning very easy. $4.99. For parents.