iSign is a sign language training program and sign language dictionary designed for use by people with hearing disabilities and others desiring to learn American Sign Language. The program uses animated graphics to illustrate and teach 800 ASL signs. The words or phrases can be viewed alphabetically or in categories, and there is quiz feature that shows a video clip of a sign and asks the user to select the correct word or phrase from a list. Users can also build a “Favorites” list for quick access to frequently used signs and use a search function to find words and phrases. COMPATIBILITY: For use with the Apple iPhone, iPod Touch or iPad. SYSTEM REQUIREMENTS: Apple iOS 3.0 or later.