[Currently available subjects]
Criminal Code (4324 questions)
- Promotion (2021~2015)
- Police Recruitment (2021~2015)
- National rank 9 (2020~2015)
- Police Officer (2021~2016)
- Court position 9 (2021~2017)

Criminal Code (2638 questions)
- Promotion (2020~2015)
- Police Recruitment (2020~2015)
- National rank 9 (2020~2016)
- Police Officer (2020)

Korean history (2208 questions)
- National Position 9 (2020~2015)
- Local level 9 (2020~2015)
- Police Recruitment (2021~2016)

Police Studies (1461 Issues) *Police Studies has been discontinued.
- Comprehensive Practice (Prospects) (2020)
- Practice 1,2,3 (2020~2019)
- Police Recruitment (2020~2018)

English grammar (177 questions) *English grammar has been discontinued.
-National Position 9 (2020~2018)
-Local 9th ​​grade (2020~2018)
- Police Recruitment (2020~2018)

Subjects and problems will be continuously added in the future.

* The core of the civil service exam is to perfectly study each passage of the previous questions.
* Haru Gichul allows you to study anytime, anywhere, not only in the reading room, but also on the subway and bus, and it allows you to study a large amount in a short time as an efficient learning method.

[Search Mode]
That fingerprint... what was the answer? Do I have to look for the whole booklet?
And do you often get stuck?
In Search, you can quickly search for the problem you are curious about by keyword.
Question information, commentary, statistics, and even your own incorrect answer notes!!

[Learning Mode]
1. Basic Learning
You can study by selecting the unit you lack.
Filter by exam type and year and study.
You can learn efficiently by taking questions in sequential order as well as in random order.
2. Short-term study
It is a mode in which continuous correct answer standards are set, and incorrect questions appear until the standard is reached.
Problems that have met the criteria you set are automatically excluded, so you can invest the time you spend on problems you don't know.
3. Smart Learning
As a long-term learning method, if the user sets only the time scale, the problems he knows are not completely excluded, but are retaken after a certain period of time, so you can learn smartly.

[Test mode]
The fastest way to find out the results of your studies! Just taking the test.
Feel the feeling of always buying a new problem book by asking 20 random questions among the problems you have. You don't need to buy the previous question papers anymore.

[Infinite Challenge]
This is a mode where you can solve problems until you get it wrong.
100 questions in a row? 1000 questions in a row? Challenge your limits.

[TTS mode]
- You can study with your voice until you fall asleep in TTS (Text To Speech) mode. Very useful if your eyes hurt or you can't see the screen.

[Save PDF]
- What if it is difficult to study on a cell phone? Print it out as a PDF and study it. Meet new past exams every day.

[Mission Mode]
- Challenge 5 questions every day and get 10 points.
- Challenge 50 challenges every day and get 100 points.

[Incorrect answer note]
- You can learn more efficiently through the correct answer rate (0%~100%) filter in the study mode and test mode.

[Excluding bookmarks/problems]
- You can add/delete bookmarks in all modes. You can learn by collecting only the bookmarked problems.
- Conversely, you can exclude problems you know for sure, so you can focus more on problems you don't know.