shelfio vs Reading Memory
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
shelfio
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「My Bookshelf」は「shelfio」に生まれ変わりました。 shelfio(シェルフィオ)は、あなたの読書をシンプルに記録・管理できる本棚アプリです。 「この本、持ってたっけ?」と本屋で迷ったことはありませんか? shelfioなら、手持ちの本をサッと登録して、いつでもどこでも自分の本棚を確認できます。 ■ 本の登録はわずか数秒 本のバーコードをスキャンするだけで、タイトル・著者・表紙が自動で登録されます。キーワード検索や ISBN検索にも対応しているので、電子書籍や手元にない本の登録もかんたんです。 ■ 読書ステータスをひと目で管理 本ごとに「未読」「読了」を記録。フィルター機能で「まだ読んでいない本」だけを表示できるので、積読の解消にも役立ちます。新しい順・古い順の並べ替えにも対応しています。 ■ 評価とメモで読書の記録を残す 読み終えた本には5段階の星評価とメモを記録できます。感想や気づきを残して、自分だけの読書ログを育てましょう。 ■ iCloudで自動同期 本棚のデータはiCloudに自動でバックアップ。iPhoneを買い替えても、大切な読書記録はそのまま引き継げます。 ■ うっかり削除しても安心 削除した本は30日間保管され、いつでも復元できます。 読書好きの方はもちろん、「積読を整理したい」「蔵書のダブり買いを防ぎたい」という方にもおすすめです。 シンプルで気持ちいい本棚管理を、shelfioで始めてみませんか?
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.
Screenshots
Verdict
The clearest difference is in-app purchases: shelfio at none against Reading Memory's 2. shelfio also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (18.0 vs 26.0). On price, ads 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. Reading Memory sells 2 in-app purchases, starting at $3.99 per month. shelfio asks for nothing beyond the download.
shelfio ships an update fortnightly, Reading Memory every 2 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | shelfio | Reading Memory |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 64 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Reo Shigeno | Kyoichi Taniguchi |
In-app purchases
shelfio
No 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







