회독장 - 오답 노트 , 오답 관리 도구

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Everyone
5+
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Everyone
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About this app

"The difference in passing is determined by reviewing incorrect answers."

Beyond simply solving problems, have you been wondering when to review the questions you got wrong? Hoedokjang is a dedicated review manager designed to maximize your learning efficiency.

✅ Hoedokjang's Unique Features

Smart Review Schedule Management

Based on the Ebbinghaus forgetting curve, it automatically sends review reminders when you are likely to forget a question.

The next review cycle is flexibly adjusted according to the 'confidence' level you set.

Perfect Incorrect Answer Archiving

Create systematic incorrect answer notes by exam, subject, and unit.

Supports camera image OCR (Text Recognition) and PDF attachment features, allowing you to quickly register without the hassle of typing.

Your Data on Your Device (Local Storage)

Your valuable study data is not transmitted to external servers. It is safely stored on your device, so you can focus solely on your studies without worrying about personal information leaks.

Intuitive Dashboard

Check your review progress by subject and today's tasks at a glance. 🎯 Recommended for these people!

Those who need to review a vast amount of material while preparing for civil service or professional exams

Those who want to neatly manage their CSAT/school exam error notes on their smartphones instead of paper

Those who want to solve problems repeatedly without writing answers directly in books

Those who want to create their own customized study notes

Review Manager saves students time. Download Review Manager right now and discover the fastest path to success!

b_h_woo@naver.com

Suggestions for more efficient learning are always welcome.
An essential error management tool for passing the exam! Perfect review completed with the review book.
Updated on
Apr 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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