Tieng Anh Lop 3 - English 3 T1 is an Android-based application developed by Tracy Duong. It falls under the Education and Reference category and is specifically designed for grade 3 students who are learning the English language. The app is a simulation of all the listening lessons in the English textbooks prescribed by the Ministry of Education and Training.

One of the most significant features of this app is that it can be used offline, making it convenient for students to learn anytime, anywhere. Students can easily listen and learn each lesson, while teachers can use the app on their smartphones or tablets to teach directly in the classroom. Each lesson and section is accompanied by relevant images and audio illustrations, and by clicking on the numbers at the bottom of the page, students can hear the content of that lesson. Moreover, the app includes new vocabulary words in each lesson, helping students to learn and review the lesson better.