책문장 - 책에서 발견한 좋은 문장

📚 When you come across a great sentence while reading — no need to reach for a separate pen or note-taking app anymore.

Chaekmunja is a reading quote collection app that allows you to quickly save great sentences from books with just a single photo.

▶ Key Features

• One-shot OCR

Take a picture of a page with your camera, and Korean OCR will automatically extract the sentence. Tap to select the line you want and save it as a quote.

• Automatic book registration via ISBN barcode

Scan the barcode on the back of the book to automatically input the title, author, and cover. For books without barcodes, you can also manually enter the title.

• Organized by page

Saved sentences are automatically organized by book. Once you set "Book I am currently reading" once, subsequent captures will save the text immediately without asking you to select the book again.

• Page and note-taking together

Page numbers and notes are saved together, making it easy to find them later. The original photo is also stored, allowing you to verify the source.

• Share anywhere via system

You can share saved sentences with a single tap via KakaoTalk, messages, memos, email, and more.

▶ What Makes Chaekmunjeon Different from Other Memo & OCR Apps

• Specialized for reading flow, not general memo use — Handles books in Level 1 increments

• Remembers your "current book" so it doesn't ask you to input the book every time

• OCR UI optimized for line-by-line selection of physical book pages

• All data is stored only on your device — No registration or account required

▶ Privacy

No registration required. All data, including books, sentences, and photos, is stored only on the user's device. Only the ISBN string is transmitted via the Kakao Book Search API for automatic book information lookup, and no user personal identification information is ever leaked externally.

▶ Premium (Optional)

Lifetime use with a one-time payment (4,900 KRW):

• Removes all ads within the app

• Removes the app link footer when sharing sentences

▶ Who Created It

Created for people who love books.

Inquiries & Feedback: cap.wtkim@gmail.com