ぬき書き vs BookDiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ぬき書き
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A quiet excerpt journal for the one-line quotes from books, articles, lyrics, and films that moved you. Save a passage that struck you, and tomorrow morning Nukigaki will gently resurface an older one from your own archive. The line you wrote months ago might hit differently today. This is not a reading tracker. It does not count pages, time, or completion streaks. It is simply a quiet place for the words that stayed with you. ● Keep a passage Save the text with the book title, author, page, your own memo, an optional photo, and a tag. Display uses a calm Japanese book typeface. ● Today's revisit One excerpt per morning, prioritizing the ones you have not revisited in the longest. ● Browse by book Gather all excerpts from the same book for a quiet re-read. ● Share card A paper-and-seal share card auto-generated at 1080×1920. ● Offline-first Everything stays on your device. No account, no ads, no tracking. For the lines that deserve to stay.
BookDiary
A private reading journal to track your books, quotes, and reading habits without requiring an account or social sharing. Log your progress, save memorable passages, and discover new reads all on your device.
- Private reading journal
- Save quotes from pages
- Reading progress tracking
- Digital book shelf
- Reading calendar
- Personal reading awards
- Draw from TBR pile
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A private reading journal for readers who’d rather not share. Snap a page to save the line that stayed with you, watch your reading days quietly fill a calendar, and keep every book on a shelf that’s yours alone. No accounts. No social feed. ◆ FEATURES Five tabs: Shelf, Reading, To Read, Quotes and Records Read from a photo: snap a page and the text becomes your quote. Snap the cover to fill in title and author. Text recognition runs on your device. Reading calendar: days you added a book, logged a page, or saved a quote are marked Monthly wrap: books finished, pages, reading days and a line from the month, on one card A line for today: one of your saved quotes as a notification at the time you choose (optional) First reads and rereads logged separately, so you can see how a book changes with you Quote cards: save or share a passage as a washi-paper image Reading progress: log today’s page and watch the bar fill Personal reading awards: book of the year, most moving, most reread and more Draw a book: can’t decide what’s next? Draw one from your TBR pile Beautiful covers without photos: nine genres, each with its own washi-paper design. Using a photo? Pinch and drag to fit it to the frame. ◆ WHO IT’S FOR Readers who want to read without other people’s ratings Commonplace-book keepers moving from paper to phone Rereaders who return to favorite books over the years Anyone with a tall TBR pile Lovers of dark academia and quiet design People who avoid apps that require an account ◆ PRIVACY No account required Your books, quotes and notes are stored on your device only and never sent to a server Photo text recognition happens on-device No barcode lookups or external book services No tracking, no analytics on your reading To introduce our other apps, the app may load public App Store information (app names and icons). Your records are never sent. ◆ PRICING, PLAINLY BookDiary is free to use. The free version includes: Up to 50 books Up to 3 quotes per book and 3 photos per reading log 2 personal award categories Up to 5 entries per My Data category 5 photo text scans Washi quote cards in square format Reading calendar for the current month; monthly wrap viewable in the app The Sumi shelf theme in cover view Introductions to our other apps
Screenshots
Verdict
The clearest difference is update cadence: ぬき書き at every 5 days against BookDiary's every 2 weeks. On price, ads, in-app purchases and device support 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
Both are free to download. ぬき書き sells 3 one-off in-app purchases and BookDiary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ぬき書き ships an update every 5 days, BookDiary every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | ぬき書き | BookDiary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Starcrown Inc | torankirite |
In-app purchases
ぬき書き
- Small Tip$0.99
- Medium Tip$1.99
- Large Tip$3.99
BookDiary
- Premium$3.99








