ISBN vs Bookshelf Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ISBN
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ISBN資料庫收錄了台灣完整書籍資料，透過搜尋名稱或掃描ISBN書碼查找書籍，對比線上書店價格。
Bookshelf Diary
Organize your book collection with ease using barcode scanning, batch entry for series, and progress tracking. Manage wishlists, customize shelf arrangements, and back up your data locally or via the cloud. Supports offline use and offers a dark mode.
- ISBN barcode scanning
- Batch entry for series
- Track owned and missing books
- Wishlist management
- Customizable shelf sorting
- Excel export/import
- Cloud backup
- Offline functionality
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[Core Features] - ISBN Barcode Scanning: Instantly retrieve book information with the cover and title filled in automatically. - Batch Quick Entry: Designed for series collections, create multiple volumes in one tap. - Collection Progress: Mark books as Owned or Missing to track your collection gaps. - Wishlist: Scan a book now and add it to your list for later. - Custom Sorting: Drag and drop to arrange your shelves your way. - Export & Import: Excel support makes moving and organizing your collection easy. - Cloud Backup: Sign in to back up and restore on a new device. - Dark Mode and Offline Search: Choose your preferred appearance and browse your local data offline. [What's New in 1.3.7] - Added purchase prices and collection spending summaries. - Expanded official and custom category management with improved visibility and ordering. - Added duplicate series and work merging directly from search results, with a choice of the item to keep. - Added a missing-volumes-first sort option to the book list. - Improved sale photo and video storage, sharing, and multi-select actions. - Improved bottom sheets, keyboard handling, backups, sign-in reliability, and data safety. - Settings now links directly to the App Store rating page. [Membership & Privacy] Your book data is primarily stored on your device and remains available for offline search. Google and Apple sign-in and purchase features are optional; membership access is validated against store purchases. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ISBN at none against Bookshelf Diary's 3. ISBN also leads on iOS requirement (14.0 vs 16.0). Bookshelf Diary's advantage is ads (none vs shown) and update cadence (every 9 days vs every 4 months). 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
Both are free to download. Bookshelf Diary sells 3 in-app purchases, starting at $2.99 per month. ISBN asks for nothing beyond the download.
ISBN ships an update every 4 months, Bookshelf Diary every 9 days. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.
| Parameter | ISBN | Bookshelf Diary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | 剑秋 肖 | WANG MEI TING |
In-app purchases
ISBN
No in-app purchases
Bookshelf Diary
- Pro Subscription7 Days trial$2.991 Month
- Pro 訂閱版7 Days trial$29.991 Year
- Plus 永久版$7.99
