Taekwon-Do ITF Theory is an Android application designed for students of Taekwon-Do, a Korean martial art. The app provides a wealth of information on the theory of Taekwon-Do, including the tenets of Taekwon-Do and their explanations, the composition of Taekwon-Do, all 24 patterns, sequence of movements (in Korean transcription, English and Korean), a description of the significance and other information, non-standard speeds of motions in patterns, kicks in patterns, list of attacking and blocking tools, stances, theory of power, moral culture, history - General Choi Hong Hi, Taekwon-Do oath, instructor titles and stripes, training secrets of Taekwon-Do, practice suit, Do Jang, Student / instructor relationship, and dictionary. The app is free to use and is a comprehensive guide for students of Taekwon-Do looking to expand their knowledge and understanding of the martial art's theory.