Học tốt Tiếng Anh 3 thí điểm is a free educational app developed by NDT Production. The app is designed to help parents teach their children English in a fun and interactive way. By using this app, parents can improve their child's English skills and prepare them for the English exams in the third grade.

The app offers a variety of exercises that cover all aspects of the English language, including listening, reading, and writing. The exercises are based on the third-grade English curriculum and are divided into different categories, such as vocabulary, grammar, and pronunciation. The app also provides detailed explanations and examples to help children understand the concepts better.