價格：免費
檔案大小：40.5 MB
版本需求：需要 iOS 5.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
The Sign Language is a visual language that uses a set of coded gestures, called signs, to represent words and letters. With this app you will quickly familiarize yourself with the Sign Language Alphabet, learning the alphabet in an easy and fun way, you will also be able to test your skill level with an easy quiz. A big first step toward being fluent in Sign Language!
支援平台：iPhone, iPad