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DayLab

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About this app

For the Information Processing Engineer (ICP) written exam, passing depends more on how you review than on how many problems you solve.

ICP is not an app that merely increases the number of practice questions. It focuses on pinpointing your current weaknesses and bringing you back problems you've already solved just before you forget them. Because the cognitive science-based FSRS algorithm analyzes the forgetting curve for each question to automatically determine the optimal review time, the amount of information retained differs significantly even with the same amount of time invested.

[Key Features]

Over 2,000 Questions, Full Range of 5 Subjects

From software design, software development, database construction, programming language utilization, to information system construction and management. It was created in-house to reflect NCS-based examination standards.

Detailed Explanations

Explanations are provided for every question. You can move on without simply checking the answer, understanding the concepts behind why that answer is correct. You can preview up to 5 in-depth detailed explanations for free.

Learning Core Concepts

It doesn't stop at just solving problems. In the Weakness Analysis section, tapping on a unit displays a summary of its core concepts, including definitions, key exam points, common pitfalls, and connections to past exam questions. You can correct confusing concepts by reviewing them while solving problems.

**Question Search**
Instantly find questions using keywords you are curious about. You can select the search range—including passages, answer choices, and explanations—to collect and solve only questions containing specific concepts.

**Various Solution Modes**
You can choose to solve problems by subject or unit, and progress and proficiency levels are displayed for each unit. You can start with unsolved problems or focus on tackling weak units.

**FSRS Smart Review**
It extends the review interval for questions you answer correctly and quickly revisits frequently missed questions. You don't need to create a review schedule yourself; the app takes care of the questions you need to review today.

**Review Notifications**
It reminds you of review times just when you are about to forget. Daily study reminders and FSRS review time notifications help maintain your study flow.

**Weakness Analysis Heatmap**
View correct answer rates by subject and unit at a glance. You can visually identify your weak areas and move directly to solving problems in that chapter.

Review Box
Gather incorrect answers and questions to review in one place. You can leave personal notes for each question, allowing you to review by comparing the reasons for your confusion with the concepts you have organized.

Practical Mock Tests
A 100-question format identical to the actual exam. Results are graded based on the passing score, and your highest scores and test history are managed.

Learning Statistics and Continuous Study
Check your daily problem-solving count, accuracy trends, and consecutive study days in real-time. Records that accumulate little by little each day help build consistency.

Exam Schedule D-Day
Check the upcoming Information Processing Engineer written exam schedule directly on the home screen.

Pre-Exam Checklist
A checklist appears on the home screen when the exam is within 7 days. Calmly prepare for the day of the exam by checking your supplies and mindset one by one.

Light or Dark Theme
You can follow the system settings or choose your own, ensuring comfortable viewing even when studying late at night. Tablet Support

You can study comfortably on tablets as well as mobile phones, with a layout optimized for large screens.

Offline Learning

You can solve problems even without an internet connection. Study seamlessly on subways or airplanes.

Device Synchronization

Once you log in, your study records and review schedules are securely stored, allowing you to continue studying even if you switch devices.

[Content Guide]

The Information Processing Engineer (ICP) app does not include past exam questions. This is because the written exam is conducted as a Computer-Based Test (CBT), meaning actual exam questions are not publicly disclosed. Furthermore, since the copyright for past questions belongs to the administering body, copying and pasting them verbatim is not permitted. Instead, we have analyzed the National Competency Standards (NCS) criteria and created study questions tailored to the format and difficulty level of the actual exam. The questions consist of core question types with a high probability of appearing on the exam, and we do not restore or reproduce past exam questions.

This app is an independent private learning tool designed to assist with studying for the Information Processing Engineer written exam. It is not affiliated with or represents any government or public institution, such as the Human Resource Development Service of Korea (HRDK) or Q-Net.

[Recommended for]

Those preparing for the Information Processing Engineer written exam for the first time

Office workers aiming to pass through self-study

Those who gave up because managing incorrect answers was cumbersome

Those who want to study briefly using their commute time

(c) 2026 DAYLAB, [e-mail]

[Terms and Policies]

Terms of Use: https://jeongcheogi.daylab.dev/terms

Privacy Policy: https://jeongcheogi.daylab.dev/privacy

What’s new

- 1:1 문의가 생겼어요 — 궁금한 점이나 문제 오류를 앱에서 바로 보내고, 사진도 함께 첨부할 수 있어요. 답변이 오면 알림으로 알려드리고, 화면에서 실시간으로 확인돼요.
- 자주 묻는 질문(FAQ)을 새로 정리했어요 — 카테고리로 빠르게 찾아볼 수 있어요.
- 나에게 맞는 시작 — 짧은 진단으로 지금 실력을 파악하고, 딱 맞는 문제를 추천해 드려요.
- 모의고사를 이어서 풀 수 있어요 — 중간에 멈춰도 진행 상태가 저장돼 다음에 그대로 이어서 볼 수 있고, 푸는 동안엔 탭바를 숨겨 시험에 더 집중돼요.
- 여러 기기에서 이어보기가 더 안정적이에요

궁금한 점이나 고쳤으면 하는 점은 설정 → 1:1 문의, 또는 [e-mail]로 알려주세요.