Comparison

Yondazo vs Passim|蔵書管理・本棚整理・読書記録

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

Head to head
About

Yondazo

Track your reading progress with detailed charts and insights. Log books, add notes, and visualize your reading journey over time. Offers on-device AI analysis for private habit discovery.

Highlights
  • Monthly, yearly, and all-time reading charts
  • On-device AI reading habit analysis
  • Book notes, ratings, and genre tagging
  • Visual bookshelf with cover grid or list view
  • Barcode scanning for quick book entry
  • Data backup and transfer
Features
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Yondazo is a reading log app that helps you track every book you finish and reflect on your reading journey from three different angles: monthly totals, year-over-year comparisons, and all-time growth. On Apple Intelligence-compatible devices, you can also get on-device AI insights into your reading habits — fully private, fully local. ■ THREE CHARTS TO VISUALIZE YOUR READING See how much you've read this month with the monthly bar chart, compare this year against last year with the year-over-year view, and watch your reading habit build over time with the cumulative line chart. Switch between the three views to look back on your reading journey from every angle. ■ AI READING INSIGHTS, PROCESSED ON-DEVICE On Apple Intelligence-compatible devices, on-device AI analyzes your reading habits and surfaces patterns you might not have noticed on your own — favorite genres, go-to authors, and your natural reading rhythm. Everything runs locally on your iPhone. Your reading data never leaves the device and is never sent to any server. It's private AI reading analysis — with nothing ever sent to the cloud. * On devices that don't support Apple Intelligence, you can still explore your reading trends through detailed statistics. ■ NOTES, RATINGS & GENRES FOR EVERY BOOK Jot down your thoughts after finishing a book, give it a 5-star rating, and tag it with a genre. Each entry becomes part of your personal reading journal, so you can revisit what you read and how you felt about it. Bookmark your favorites to find them again with a single tap. ■ A BEAUTIFUL BOOKSHELF, ALL YOURS Every book you add appears in a beautiful cover grid — a bookshelf that's entirely yours, ready to browse anytime. Prefer a cleaner view? Switch to list mode with a single tap. ■ ADD BOOKS IN SECONDS WITH BARCODE SCAN Just point your camera at a book's barcode. The title, author, publisher, and cover are added automatically — no tedious typing required. For older titles without a barcode, you can search and add them by title. ■ YOUR DATA, SAFE AND PORTABLE Your reading history matters. That's why Yondazo gives you the tools to keep it safe. • Full backup and restore (JSON format) • Seamless data transfer when you switch devices • Automatic migration from older versions ■ WHO IT'S FOR • Readers who want a simple way to log the books they finish • Anyone curious about how many books they read each month • People who like comparing this year's reading with last year's • Readers who enjoy reflecting on their habits through data • Anyone who wants AI to help them spot patterns in their reading • Readers who like keeping notes and impressions of each book

About

Passim|蔵書管理・本棚整理・読書記録

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汎用アプリで蔵書管理テーブルを作ったことがある人へ。 スプレッドシートで本のリストを管理している人へ。 その仕組み、Passimなら3秒で終わります。 バーコードをかざすだけで書籍情報を自動取得。 本棚をスマホで撮影すれば、AIが背表紙を読み取って一括登録。 ■ プロジェクトで束ねる 論文執筆、資格勉強、受験対策、新規事業リサーチ—— プロジェクトごとに本を紐づけて、何をどこまで読んだか把握。 教科書・参考書も勉強ごとに整理でき、参照メモも残せます。 ■ どこにあるか、わかる 自宅・研究室・実家・倉庫。 本の現在地を記録して「あの本どこだっけ」をゼロに。 ■ 手放すことも、記録する 売却・寄贈・廃棄・譲渡。手放した本の履歴もPassimに。 「この本、前に持ってたっけ?」にも答えられます。 ■ あなたのデータを守る 感想やメモはAIの学習に使いません。削除した本もProなら7日間復元できます。 ■ AIが整理を手伝う タグの自動生成、一言要約。 Proではあいまい検索で「読みやすいミステリー」のような探し方も。 ■ プラン Free — 50冊まで。Passimの価値を体験。 Pro(¥500/月)— 冊数無制限。高精度スキャン。AI検索。 年額¥4,500でさらにお得に。 制作: MODALAVA(AIエージェント開発) ―――――― 利用規約: https://passimapp.com/terms プライバシーポリシー: https://passimapp.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Yondazo4 screens
Passim|蔵書管理・本棚整理・読書記録4 screens

Verdict

The call

The clearest difference is in-app purchases: Yondazo at none against Passim|蔵書管理・本棚整理・読書記録's 2. Yondazo also leads on ads (none vs shown). Passim|蔵書管理・本棚整理・読書記録's advantage is update cadence (every 3 weeks vs every 6 months) and iOS requirement (16.0 vs 18.0). On price 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. Passim|蔵書管理・本棚整理・読書記録 sells 2 in-app purchases, starting at $4.99 per month. Yondazo asks for nothing beyond the download.

UpkeepUpdate frequency

Yondazo ships an update every 6 months, Passim|蔵書管理・本棚整理・読書記録 every 3 weeks. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 5 level
Yondazo versus Passim|蔵書管理・本棚整理・読書記録: the parameters behind the verdict, then further details
ParameterYondazoPassim|蔵書管理・本棚整理・読書記録
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.0 — better
Further details — not scored
Size7 MB73 MB
Age rating4+4+
Developerarakawa yuichiroMODALAVA

In-app purchases

None

Yondazo

No in-app purchases

2 purchases

Passim|蔵書管理・本棚整理・読書記録

Subscriptions2
  • Passim Pro Monthly$4.991 Month
  • Passim Pro Yearly$49.991 Year

Questions

Is Yondazo free?
Yondazo is free to download, with no in-app purchases.
Is Passim|蔵書管理・本棚整理・読書記録 free?
Passim|蔵書管理・本棚整理・読書記録 is free to download, with in-app purchases available.
Do Yondazo or Passim|蔵書管理・本棚整理・読書記録 have ads?
Passim|蔵書管理・本棚整理・読書記録 shows ads; Yondazo does not.
Which is updated more often, Yondazo or Passim|蔵書管理・本棚整理・読書記録?
Yondazo ships an update every 6 months, and Passim|蔵書管理・本棚整理・読書記録 every 3 weeks. Most recently, Yondazo was updated on October 9, 2026 and Passim|蔵書管理・本棚整理・読書記録 on October 1, 2026.

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