Comparison

indexx vs 여백

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

indexx

Capture, organize, and share impactful sentences from books. This app uses OCR to extract text from photos or allows manual entry, linking each quote to its source and your reflections. Create shareable quote cards and track your reading journey with a personal library.

Highlights
  • Capture sentences via OCR or manual entry
  • Link quotes to book, page, and reflections
  • Generate shareable quote cards
  • Track reading progress and history
  • Barcode scanner for book registration
  • Personal sentence library
Features
Read full description

Some sentences deserve more than a fleeting moment. indexx is a reading companion built for people who underline, dog-ear pages, and return to the words that changed how they think. CAPTURE SENTENCES THAT MATTER Photograph a book page and let OCR extract the text instantly. Or type it in yourself. Either way, every sentence you save is linked to its book, page number, and your personal reflection on why it mattered. TURN QUOTES INTO SHAREABLE CARDS Transform any saved sentence into a beautifully designed quote card. Choose colors, adjust layout, and share directly to Instagram, Messages, or anywhere you want. Make your reading visible. TRACK YOUR READING JOURNEY Add books by scanning their barcode or searching by title. Mark what you want to read, what you're reading now, and what you've finished. Rate, review, and see your reading history at a glance. YOUR PERSONAL SENTENCE LIBRARY Browse all your captured sentences in one place. Each one carries the book it came from, the page you found it on, and the thought you had when you read it. A timeline of your reading life, built one underline at a time. KEY FEATURES - Barcode scanner for instant book registration - Camera OCR to extract text from physical book pages - Beautiful quote card generator with multiple styles - Star ratings and personal reviews - Reading progress tracking with start and end dates - Stacked card and grid view for your bookshelf - Filter by time period: all time, this year, this month, this week - Private and offline — all data stays on your device indexx is for readers who believe the best part of a book isn't the cover — it's the sentence you can't stop thinking about.

About

여백

This app allows users to jot down fleeting thoughts and one-line notes while reading, organizing them by chapter. It facilitates sharing these notes with others in reading groups and keeps track of reading progress across various book formats.

Highlights
  • One-line notes by chapter
  • Chapter-based timeline of notes
  • Platform-neutral recording
  • Home screen widget for quick notes
  • Reading group creation and sharing
  • Organized 'reading' and 'read' bookshelves
Features
Read full description

도서관 책 여백에 누군가 남긴 메모를 발견한 적 있나요? '여백'은 그 감성을 그대로 옮긴 독서 앱입니다. 서평을 쓰는 앱이 아닙니다. "다 읽고 정리하는" 기존 독서 앱과 달리, 여백은 '읽는 중 떠오른 한 줄'을 남기는 데 집중합니다. [이런 분들께 추천합니다] · 책을 다 읽고 나면 무슨 생각을 했는지 잊어버리는 분 · 독서 모임에서 서로의 메모를 나누고 싶은 분 · 종이책, 킨들, 밀리, 리디 어디서든 가볍게 기록하고 싶은 분 · 거창한 서평 말고 한 줄 메모면 충분한 분 [주요 기능] • 한 줄 기록, 2탭이면 끝 지금 읽는 자리(쪽 또는 %)에 메모 한 줄만 남기면 끝납니다. 메모 없이 "여기까지 읽었다"만 기록해도 좋습니다. • 같은 자리 타임라인 같은 책의 같은 자리를 지난 사람들이 남긴 여백이 모입니다. 판본이 달라도, 종이책·전자책이 섞여도 위치로 이어집니다. 아직 닿지 않은 자리는 자동으로 가려져 스포일러 걱정 없이 탐색할 수 있습니다. • 플랫폼 중립 여백은 리더 앱이 아닙니다. 종이책, 전자책, 어디서 읽든 기록만 가져갑니다. • 홈 위젯 홈 화면 위젯에서 "기록 남기기" 한 번으로 바로 메모를 남길 수 있습니다. • 독서 모임 초대 코드 하나로 친구·북클럽 멤버와 모임을 만들고, 함께 읽는 책을 자동으로 발견합니다. • 내 서재 '읽는 중'과 '다 읽은 책'을 한눈에. 진행률을 기록하면서 완독까지, 나만의 독서 습관이 쌓입니다. [여백이 다른 이유] · 팔로우도, 좋아요도 없습니다. 책이라는 매개로만 느슨하게 연결됩니다. · 회원가입이 필요 없습니다. 닉네임만 정하면 바로 시작할 수 있습니다. 책의 여백, 그 한 줄에서 시작하세요.

Screenshots

indexx4 screens
여백4 screens

Verdict

The call

The clearest difference is update cadence: 여백 at every 10 days against indexx's every 3 months. 여백 also leads on monetization model (free vs ad-supported) and iOS requirement (15.1 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

indexx ships an update every 3 months, 여백 every 10 days. Both last shipped on November 5, 2026.

Scorecard3 real differences · 7 level
indexx versus 여백: the parameters behind the verdict, then further details
Parameterindexx여백
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size4 MB55 MB
Age rating4+12+
DeveloperOKMIN LEEDongjin Yang

Customer experience

indexx

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

여백

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

indexx

No in-app purchases

None

여백

No in-app purchases

Questions

Is indexx free?
indexx is free to download, with no in-app purchases.
Is 여백 free?
여백 is free to download, with no in-app purchases.
Do indexx or 여백 have ads?
Neither indexx nor 여백 shows ads.
Which is updated more often, indexx or 여백?
indexx ships an update every 3 months, and 여백 every 10 days. Most recently, indexx was updated on November 5, 2026 and 여백 on November 5, 2026.

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