GET 賴世雄英文文法 is an Android app developed by Soyong Corp. that offers a comprehensive guide to learning English grammar. The Lite version of the app provides the content of the first two chapters, including the first section of chapter one, which is the introduction, explanation, and overview of the app. The full version includes all 14 chapters but does not include audio lessons. The app is primarily aimed at users who want to learn English grammar rules and important concepts in a clear, easy-to-understand format.

The app's unique approach to teaching grammar starts by introducing the main subject and verb in a sentence, rather than the traditional eight parts of speech. The app also provides detailed explanations of the use of conjunctions, helping users to understand the construction of complex sentences. Additionally, the app offers a testing feature to help users practice and master their grammar skills, with the answers and explanations provided for each question. Overall, GET 賴世雄英文文法 is an excellent tool for those who want to improve their English grammar skills and is one of the most accessible and user-friendly grammar reference books available today.