"Comprehensive History Study" is an educational reference app designed in collaboration with current high school students to make studying more enjoyable. By using both the book and the app together, users can efficiently learn "Comprehensive History."

The app offers 3,500 questions across 35 themes, including Basic, Standard, Advanced, and Application levels. Users can choose between multiple-choice and question-answer formats, catering to different learning styles. Additionally, a glossary of 700 terms aids in understanding historical concepts, and users can track their learning progress through the data screen.

With the option to select themes and difficulty levels, shuffle questions, and focus on revising incorrect answers, "Comprehensive History Study" aims to enhance historical knowledge in an engaging way.