Comparison

Reading Savings 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

Reading Savings

Features
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Reading Passbook – A reading log app where the books you read turn into “savings.” What is Reading Passbook? When you log a book you borrowed from the library or read through an unlimited-reading service, the book’s retail price is added as “Reading Savings.” It turns your reading activity into a visible, motivating habit — great for children building reading routines and adults who want to track their reading in a fun way. Main Features ・Book Registration Scan barcodes to register books instantly Search by title to find books Add books manually when needed ・Reading Savings Track the price of books you read from libraries or unlimited services View savings in a clean passbook-style log See how much you “saved” by reading instead of buying ・Bookshelf View Manage all the books you’ve read in one place Display book covers in a visual bookshelf layout Rate each book and add notes to remember your impressions ・Profile Management Create separate bookshelves for each family member Perfect for households where parents track children’s reading ・Share Your Reading Share monthly reading reports as images Create stylish cards showing the book covers you’ve read Who is this app for? Parents who want to support their child’s reading habit People who frequently use libraries Users of unlimited-reading services such as Kindle Unlimited Anyone who wants a fun, motivating way to keep a reading log Reading becomes more enjoyable when you can see your progress and savings. Start your Reading Passbook today!

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

Reading Savings4 screens
Passim|蔵書管理・本棚整理・読書記録4 screens

Verdict

The call

The clearest difference is ads: Reading Savings at none against Passim|蔵書管理・本棚整理・読書記録's shown. Reading Savings also leads on update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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. Reading Savings sells 1 one-off in-app purchase and Passim|蔵書管理・本棚整理・読書記録 sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Reading Savings ships an update weekly, Passim|蔵書管理・本棚整理・読書記録 every 3 weeks. The most recent releases landed on October 28, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 4 level
Reading Savings versus Passim|蔵書管理・本棚整理・読書記録: the parameters behind the verdict, then further details
ParameterReading SavingsPassim|蔵書管理・本棚整理・読書記録
PriceFreeFree
Update frequencyWeekly — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size36 MB73 MB
Age rating4+4+
DeveloperMiyuki FujiraiMODALAVA

In-app purchases

1 purchases

Reading Savings

One-time1
  • 読書貯金プレミアム$19.99
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 Reading Savings free?
Reading Savings is free to download, with in-app purchases available.
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 Reading Savings 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; Reading Savings does not.
Which is updated more often, Reading Savings or Passim|蔵書管理・本棚整理・読書記録?
Reading Savings ships an update weekly, and Passim|蔵書管理・本棚整理・読書記録 every 3 weeks. Most recently, Reading Savings was updated on October 28, 2026 and Passim|蔵書管理・本棚整理・読書記録 on October 17, 2026.

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