Ngữ pháp Tiếng Anh TFlat, also known as English Grammar, is a leading mobile app for learning English grammar in Vietnam. With over 1 million downloads, this app is designed to help users improve their English grammar in just 30 days.

The app is available offline, which makes it more convenient for users to learn English anytime, anywhere, even without an internet connection. The app offers a rich and diverse range of lessons, with over 100 lessons that cover basic to advanced grammar topics. Each lesson comes with exercises and full answers. Moreover, the app also includes famous quotes and English jokes, which make learning English grammar more fun and relaxing.

Developed by TFlat, this app is perfect for those looking to improve their grammar and become more confident in English. Please note that any feedback or inquiries should be directed to