Thi Hay - Review National High School Exam is a free Android app developed by 3A STUDIO. It falls under the Education & Reference category. The app is designed to help students prepare for the high school graduation test and university entrance exams by providing mock exam questions in accordance with the structure and content of the Ministry's National High School Exam.

The app offers an extensive list of subjects for high school exams including Math, Physics, Chemistry, Literature, Biological, History, Geography, English, Citizenship Education (GDCD), Technology, and Information technology. It is a simple and easy-to-use app that does not require an account to login, download, and use immediately. The app is completely offline, ensuring a super smooth and stable experience.

After completing the test, the app provides marks and reference solutions. It also offers an abundant warehouse of exam questions and documents for 2020, 2021, 2022, andUsers can send questions to friends or post them to the group for discussion. Additionally, the app offers a timetable of subjects and a countdown to the date of the National High School Exam, which is helpful for students to review for the university exam.