공든탑: 정처기·컴활·SQLD 자격증 공부 is an education app by 코쿠리 with 10+ downloads (about 23 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “Learn IT Processor Engineer, Computer Proficiency, Linux Master, SQLD, and Korean History Proficiency Test easily, starting from the concepts. Lead to success with mock exams and review reminders.”