오답노트 끼다

효나사랑

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About this app

Exam preparation, reviewing workbooks...

Have you ever tried to review the questions you got wrong but ended up giving up?

This app is a smart learning tool that helps you systematically manage your incorrect answers and facilitates repetitive learning aligned with the forgetting curve.

It is designed not merely for simple record-keeping, but with the goal of “preventing you from making the same mistakes again.”

📚 Manage Your Own Subjects & Error Notes

Create your desired subjects and edit them freely

Create various error notes for each subject, such as exams and workbooks

Quick organization and access thanks to an intuitive structure

📝 Add Questions (Image-based Smart Input)

Import question images from camera or gallery

Extract questions by selecting only the necessary areas

Remote clarity by removing paper backgrounds, scribbles, and creases

Remove unnecessary elements using the eraser function

Supports Question Types

✔ Short Answers

Simply save by entering only the correct answer

✔ Multiple Choice

Directly select option areas

Automatic text recognition using OCR

Freely adjust and modify the number of options

Save Answers

📊 Study Function (Smart Repetitive Learning)

Automatically sort questions by the most incorrect answers

Provides an efficient review order

Records the number of correct answers per question (displays such as "0 correct answers")

✔ Answer Processing

Increases the correct answer count each time a question is answered correctly

✔ Mastery Assessment

7 or more correct answers → Classified as a question fully understood

Subsequent questions are automatically placed at the end

Guidance messages Provided

👉 “The following problems are problems that you have sufficiently studied.”

✔ Advanced Management Features

Reset correct answer count

Delete questions

Cancel function provided

🖨️ Create Incorrect Answer Workbooks (Print Function)

Create your own workbook with selected questions

Optimized for A4 vertical half-fold layout

Filter questions based on correct answer count

✔ Utilize Results

Check directly within the app

PDF download

Email sending supported

🔔 Forgetting Curve-Based Notification System

Provides daily study notifications at 16:30

Notifications based on questions that have not yet been fully learned

✔ Upon Completion of All Questions

Re-notification after 3 days × number of completions

Provides up to 4 repeated notifications

Automatically terminates after 5 times

📈 Study Record Management

Automatically saves study dates

Records number of solutions

Check your learning flow at a glance

🚀 Recommended for:

Students who want to consistently manage their incorrect answer notes

Those who want to prepare for exams systematically

Test-takers who need repetitive study

All learners looking for an efficient review system

“The surest way to make incorrect questions your own”

Now, study with a system, not just by instinct.