Thi Tốt is the top online exam preparation app in Vietnam, designed to help students achieve high scores quickly by practicing with exam papers closely aligned with the Ministry of Education's curriculum. It offers a wide range of exam types and subjects, including mid-term and final exams, quizzes, and textbook exercises from middle school to high school levels.

With a comprehensive theoretical system following educational standards, Thi Tốt covers subjects like Mathematics, Physics, Chemistry, Biology, History, Geography, English, Civic Education, and Literature. Additionally, it provides group study, knowledge arena battles, and online exams where users can create rooms, select quizzes, participate in group battles, and even have teachers create and monitor tests.

Thi Tốt also features study progress tracking, free quick Q&A support from the community and tutors, expert consultations, rewards, and social interactions. Whether aiming for perfect scores or seeking rapid improvement, Thi Tốt offers a diverse range of resources for students preparing for various exams, including the National High School Graduation Exam, Aptitude Assessment Exam, Grade 10 Entrance Exam, mid-term exams, and more.