Reading Memory vs Libri 読書管理
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reading Memory
This app helps you build a consistent reading habit and retain information from the books you read. It allows you to track reading days, manage your to-read pile, and take private notes on your books. Advanced features like AI-powered key point extraction are available through an optional subscription.
- Build daily reading habits
- Track reading streaks and finished books
- Organize to-read and finished book piles
- Take private notes and sticky notes
- Search and add books via barcode or title
- Generate reading cards and badges
- AI-powered key point extraction (subscription)
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Make reading a daily habit, and remember the books you've read. Reading Memory keeps every book you read and every line you write, one book at a time, on your own bookshelf. You want to read more, but it never sticks. You finish a book, then can't recall what was in it. The books you bought sit on a pile, unread. Reading Memory is made for that. MAKE READING A DAILY HABIT On days you read, tap "Read today" once. Even a day with one page counts. Your reading days fill a calendar, and your streak and the number of books you finished this year go up. You can also tap from Home Screen and Lock Screen widgets. NEVER FORGET WHAT YOU READ Notes you write while reading show up on your bookshelf a few days later, with how long ago you wrote them ("written 72 days ago"). Read them again and add a line right there. When you reread a book, the notes from your last read are on that book's page. FINISH YOUR TO-READ PILE, ONE BOOK AT A TIME Books you own but haven't started sit in a pile at the bottom of your bookshelf. Tap the pile to start the top book. When you finish one, the app picks the next book from your pile. PRIVATE BY DESIGN No social feed, no followers, no public reviews. Only you can read what you write. — WHAT YOU CAN DO ◆ Bookshelf Finished books stand on a shelf for each year. Books you're reading lie face up, and books you haven't started are stacked. You can also add the books you've already read, one after another. ◆ Add books Search by title or scan the barcode. Book data comes from Google Books, Open Library, openBD, and Rakuten Books. There is no limit on how many books you can add. ◆ Sticky notes for novels Write about characters, lines you loved, and how you felt on sticky notes, and stick them at the page you're on. Move the bookmark to record your page and "Read today". ◆ A notebook for nonfiction Write the book's words and your own thoughts with page numbers. Snap a page to read its text and add the lines you pick as the book's words. Vertical Japanese text works too. Export your notebook as text. ◆ A reading card when you finish Give stars, write one line, and stamp the card. It goes into that year's card box. Save or send the card as an image. ◆ Reading log and badges See your reading days on a calendar, your streak, and how many books you finished. Earn badges at milestones. ◆ Want-to-read list Note who recommended a book or where you saw it. ◆ iPad Works on iPad, in portrait, landscape, and Split View. — MEMORY PLUS (auto-renewable subscription) Adding books, sticky notes, notebooks, reading text from pages, reading cards and stamps, the calendar, and widgets are free for good. Memory Plus adds: ◆ Turn the lines you picked from a page into key points (uses AI) ◆ Look up a word from your notebook across all your books (free shows the number of books and the first line) ◆ Your year in books: everything you read and wrote in a year, in one place ◆ Detailed statistics: books finished per month, genres, ratings, and how books made you feel ◆ Summaries of the notes you wrote (uses AI) Pricing in the US: $39.99 per year / $3.99 per month. Prices vary by region. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically at the same price and period unless cancelled at least 24 hours before the end of the current period. Manage or cancel it in Settings › Apple Account › Subscriptions. Terms of Use (EULA): https://taniguchi-kyoichi.com/en/products/reading-memory/terms Privacy Policy: https://taniguchi-kyoichi.com/en/products/reading-memory/privacy — Sign in with Apple or Google. No ads. Feedback and bug reports: tap "Contact us" in the app's Settings.
Libri 読書管理
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スマホの中に、静寂に包まれた「あなただけの図書館」を。 Libri(リブリ)は、SNSの喧騒から離れ、純粋に本と向き合うための読書管理アプリです。 読み終わった本を棚に並べ、心に残った言葉を栞(しおり)にする。 そんな豊かな読書体験を、最新の技術で美しくサポートします。 ■ Libri の特徴 【1. 心に残る言葉を「栞」にする】 本を読んでいてハッとした一文、手で書き写す必要はありません。 ページをカメラで撮影するだけで、文字を自動で読み取り、美しい「栞」として保存します。 大切な言葉たちが、あなたの人生の財産になります。 【2. 表紙も美しく蘇る、AI本棚】 本の登録は、バーコードをスキャンするか、表紙を撮影するだけ。 独自のAI技術が、古い本の表紙や粗い画像も鮮やかに高画質化します。 まるで画集を眺めるように、あなたのコレクションを美しく並べることができます。 【3. 自由自在なテーマ分類】 「人生を変えた本」「仕事の相棒」「2025年の記録」。 1冊の本に複数のタグを付けられるので、既存のカテゴリに縛られない、あなただけの自由な分類が可能です。 ■ こんな方におすすめ ・読書SNSの「評価」や「いいね」に疲れてしまった方 ・本の中の好きな一節を、手軽にデジタルで残したい方 ・自分の本棚を、美しい画像でコレクションしたい方 ・誰にも邪魔されない、静かな読書空間が欲しい方 Libri に登録したデータは、あなただけのものです。 誰かと比較されることはありません。 さあ、あなただけの静かな図書館作りを始めましょう。
Screenshots
Verdict
The clearest difference is in-app purchases: Libri 読書管理 at none against Reading Memory's 2. Libri 読書管理 also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, 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
Both are free to download. Reading Memory sells 2 in-app purchases, starting at $3.99 per month. Libri 読書管理 asks for nothing beyond the download.
Reading Memory ships an update every 2 months, Libri 読書管理 every 3 weeks. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.
| Parameter | Reading Memory | Libri 読書管理 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 48 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Kyoichi Taniguchi | BasaApp Technologies |
In-app purchases
Reading Memory
- メモリープラス月額プラン$3.991 Month
- メモリープラス年額プラン$39.991 Year
Libri 読書管理
No in-app purchases








