열공메이트 - 공부타이머·수능 공시생 스터디 플래너

엘리시온

About this app

The timer stops if you get distracted. A study timer + study planner that displays your level of concentration as a grade.

From the CSAT and school grades to civil service exams and certifications, the level of concentration varies even when studying for the same hour.

Yeolgong Mate tells you "how focused you were"—not "how long"—as a concentration density grade,

and manages your plans all at once with the weekly study planner. All features are free, and there are no ads.

1. Weekly Study Planner — From planning to execution, all in one place

Arrange your study plans on the daily schedule and compare your actual study volume against your plan at a glance.

You can manage recurring weekly schedules and one-time "this week only" plans separately. Separate academy cancellations or school closures into "This week only" and move unfinished plans to "Postpone to another day."

Register your exam/mock test D-Day and tasks to prepare, and it will keep track of the remaining days and your progress.

If you get distracted, the timer stops. 2. Focus Density Score — The Core Feature of Yeolgong Mate

You earn a high score by completing the timer, minimizing pauses, and studying without interruption.

SS (Legend) > S+ > S > A > B > C

The higher the grade, the more focused you are. No matter how tough the day, you start at least at C.

Focus Density is a reference score to help you reflect on your focus habits. Check your focus for the day with a grade instead of just seeing study time as a number.

3. Study Mode — Choose at Start

Every time you start the timer, you choose from three options and receive a bonus to your Focus Density score based on the mode you selected (based on completing the timer without interruption). You can also set it to start immediately without being asked every time.

Normal Mode (+5): No interruption detection, unlimited pauses. Recommended for when you want to start without pressure.

Focus Mode (+10): Put your phone down to study. If you use other apps for a while, you must copy the challenge phrase to return. If you complete the timer with 0 interruptions, you earn a Verified certification.

Ultra Mode (+15): The most powerful lock. Pause is disabled, and the timer stops even if you use another app for just a moment. The screen is locked, and even the Home and Recent Apps buttons are locked.

Even if you turn off the screen or lock the device, it will not be counted as an out-of-time activity immediately after answering or ending a call. Focus Mode does not keep the screen on continuously, so there is no strain on the battery.

4. Error Note — Collect and review only the questions you got wrong

Record your incorrect answers by subject and chapter. If you send notes from your To-Do list to the Error Note, they will not disappear the next day and will remain there until you delete them.

You can save them with photos and voice recordings. You can save time by taking photos with the camera or selecting from your album to attach up to 5 images per question, saving you the time of manually copying the answers. You can also attach up to 2 voice explanations per note as to why you got the answer wrong. Photos and recordings are saved only on your device and are not transmitted externally.

Press "Review Complete" every time you solve a problem again to count the repetitions, and mark problems you have fully mastered as "Master." You can use the 'Review Only' filter to select and view only the problems you haven't mastered yet.

5. Study Method Presets — Start with a single touch

You can start routines created by referencing methods introduced in learning and psychology research with a single tap. We recommend methods tailored to your grade level. Since effectiveness varies by person and subject, it is recommended to try a few and choose the one that works best for you.

Interleaving: Research suggests that studying subjects alternately leads to longer retention (Rohrer & Taylor, 2007).

The 52-17 Rule: 52 minutes of focus + 17 minutes of rest. These are ratios derived from usage data of a productivity app.

Ultradian 90: A method based on the hypothesis that a person's state of alertness fluctuates around 90 minutes.

Hard Start: If you open up a difficult problem first, it keeps rolling in your head even while you are doing other things (Barbara Oakley, 'A Mind for Numbers').

Test Loop: Research suggests that the act of solving problems itself is a powerful form of review (Roediger & Karpicke, 2006).

6. Study Timers to Choose According to Your Study Style

From countdowns, free stopwatches, Pomodoro modes, and lap timers to a continuous mode that automatically runs multiple subjects in succession.

We also have a CSAT simulation that lets you practice exactly according to the actual exam schedule (80 minutes for Korean, 100 minutes for Math, including breaks), as well as an analog clock styled like a test center wall clock.

You input your plans and timers directly using numbers instead of a wheel. You are not bound by 5-minute increments.

This is a ratio derived from usage data of a productivity app. 7. Study Rooms for Collaborative Study — Study Longer Than Alone

Create a study room with a friend using an invitation code, or join a public lounge to study with others.

Choose your seat from three seating layouts—Study Cafe, Reading Room, or Classroom—and see who is currently studying in real-time. Even if you study with your screen off, it will be displayed as "Off-Screen Immersion."

In rooms created with an invitation code, everyone can track their study time together using "Focus Together" (Shared Countdown). You can also send anonymous encouragement to each other.

If you copy an invitation code, the app will automatically detect it and suggest you join. You can hide or report users who make you uncomfortable.

Only your nickname, character, study status, and today's study time are shared; statistics and subject-specific records are not. You can use it anonymously without a separate registration.

8. Study Grass — Color Fills in as You Study Every Day

Just like GitHub Grass, your study days are recorded in a grid spanning the last four months. The more time you spend studying, the darker the color becomes. We also display your continuous study records and personal bests.

9. 5 Home Screen Widgets

With the Today's Study Time, Exam D-Day, Start Subject, Today's Plan, and Today's To-Do widgets, you can see your study progress without even opening the app. You can start a timer or check off your tasks directly from the widgets.

10. Tailored to You

Select your level, ranging from lower elementary grades to civil service exam candidates, and the focus density standards and recommended study methods will be tailored to you.

Characters like Toru (Pink Rabbit), Pangi (Penguin), Taco (Rabbit), and Totoro (Gray Rabbit) cheer you on based on your concentration level, while 10 types of white noise—rain, waves, forest, campfire, cafe, train, library, clock, space, and handwriting—help you focus. You can create your own unique sounds by playing up to three simultaneously.

11. Statistics, Backup, and Completely Free

Check your study patterns with daily, weekly, and monthly statistics and study reports.

Your study records are saved on your device. Please create a backup file in the Settings tab before changing devices. It includes photos of your incorrect answers and audio recordings, allowing you to restore them exactly as they are on your new device.

All features are free, and there are absolutely no ads. It does not distract students from their concentration.

Recommended for:

Those who study but feel they cannot concentrate or that their efforts are ineffective

Those who find it difficult to focus on their studies because of their phones

Elementary, middle, and high school students preparing for the CSAT or school exams

Civil service exam candidates

Students preparing for certification or language proficiency tests

Those who want to collect incorrect answers in an error notebook to solve them again

Those who struggle to study alone and need motivation to study with others

Those who want to manage their plans and study time using an app instead of a paper study planner

Those who want a clean, ad-free timer and planner for free

What’s new

오답노트에 왜 틀렸는지 음성으로 설명을 남길 수 있어요. 백업할 때 사진과 녹음까지 함께 담겨서 기기를 바꿔도 그대로 옮겨가요.

계획과 타이머 시간은 휠 대신 숫자로 바로 입력해요. 5분 단위에 묶이지 않습니다.

학교급을 바꾸면 기본 시간표도 새로 채울지 물어봐요. 연속 모드를 중간에 끝내도 결과와 점수가 나오고, 계획으로 시작한 공부도 5분부터 기록돼요.