Comparison

BookDiary vs YomuMark

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

Head to head
About

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.

Highlights
  • Private reading journal
  • Save quotes from pages
  • Reading progress tracking
  • Digital book shelf
  • Reading calendar
  • Personal reading awards
  • Draw from TBR pile
Read full description

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

About

YomuMark

Features
Read full description

Snap a page. Save what matters. YomuMark is a reading notes app that lets you save pages from print books and eBooks, then organize them with highlights, underlines, handwriting, notes, and tags. Use OCR to capture text from saved pages and keep the passages, ideas, and insights you want to remember—all organized by book. It’s also perfect for anyone who doesn’t want to write directly in a physical book. Keep your books clean while moving your highlights and notes into a digital space. With tags and search, you can quickly find what you saved later and turn your reading into a personal collection of notes and knowledge. 【What You Can Do with YomuMark】 ■ Organize Your Books Keep the books you’re reading and the ones you want to revisit together on your in-app bookshelf. ■ Save Pages That Matter Capture and save important pages, then organize them by book for easy access later. ■ Capture Text with OCR Use OCR to recognize text from saved pages and select the passages you want to keep. ■ Add Highlights and Underlines Mark important sentences and memorable passages just like you would in a physical book. ■ Write and Draw on Pages Add freehand notes with pens and markers. Use circles, rectangles, arrows, and more to visually mark important areas. Eraser, Undo, and Redo are also supported. ■ Save Your Thoughts and Notes Keep your own thoughts, interpretations, and ideas together with the passages that inspired them. ■ Organize with Tags Add tags by topic or purpose so your reading notes are easier to organize and revisit. ■ Search Books, Pages, and Notes Search across saved books, pages, OCR text, highlights, notes, and more to quickly find what you’re looking for. ■ Keep Pages Organized Sort pages by page number or date added, and switch between different views to organize them the way you prefer. 【YomuMark Is Perfect For You If You…】 ・Don’t want to highlight or write directly in your books ・Want to keep physical books clean ・Want to save passages that catch your attention ・Want to manage reading notes on your phone ・Want to save and search book content with OCR ・Want to organize highlights, underlines, and notes by book ・Want to keep important points from books used for study or work ・Want to turn reading insights into your own knowledge collection 【Don’t Just Read It. Keep What You Learn.】 “I want to read this sentence again later.” “I want to remember this idea.” “I want to save what I just realized while reading.” YomuMark helps you capture those small moments of insight as they happen. Save the pages that matter, then add highlights, underlines, handwriting, and notes. When you want to revisit them, find everything again through your bookshelf, tags, and search. YomuMark isn’t just about saving pages. It helps you turn what you read into knowledge you can keep and use. Snap a page. Save your thoughts. With YomuMark, make every book worth coming back to.

Screenshots

BookDiary4 screens
YomuMark4 screens

Verdict

The call

The clearest difference is ads: BookDiary at none against YomuMark's shown. YomuMark's advantage is update cadence (every 4 days vs every 2 weeks) and iOS requirement (15.5 vs 17.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BookDiary sells 1 one-off in-app purchase and YomuMark sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BookDiary ships an update every 2 weeks, YomuMark every 4 days. Both last shipped on October 31, 2026.

Scorecard3 real differences · 7 level
BookDiary versus YomuMark: the parameters behind the verdict, then further details
ParameterBookDiaryYomuMark
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.5 — better
Further details — not scored
Size3 MB81 MB
Age rating4+4+
DevelopertorankiriteTsuyoshi Ninomiya

In-app purchases

1 purchases

BookDiary

One-time1
  • Premium$3.99
1 purchases

YomuMark

One-time1
  • YomuMark Pro$9.99

Questions

Is BookDiary free?
BookDiary is free to download, with in-app purchases available.
Is YomuMark free?
YomuMark is free to download, with in-app purchases available.
Do BookDiary or YomuMark have ads?
YomuMark shows ads; BookDiary does not.
Which is updated more often, BookDiary or YomuMark?
BookDiary ships an update every 2 weeks, and YomuMark every 4 days. Most recently, BookDiary was updated on October 31, 2026 and YomuMark on October 31, 2026.

Other comparisons