9급 공무원 시험 기출문제 by Trutory is an Android application that consists of an extensive compilation of past exam questions for 9th-grade civil servants. With over 11,255 questions from 2007 to 2016, including national, local, court, social welfare, and administrative law general theory, the app is an excellent resource for anyone preparing for the 9th-grade civil servant exam. The app provides a hierarchical management system for bookmarks, incorrect answers, and progress tracking. The program also facilitates automatic scoring, filter-based analysis, and various options for creating a personalized learning environment. With the elective course support feature, users can create their own tab menu, making it a unique feature of the app. 9급 공무원 시험 기출문제 is free, and users can purchase the answer key by searching for '9급공무원.'