BookSnap vs Reader King
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BookSnap
Easily identify and price your books by scanning their barcodes or taking a photo. Get real-time market value estimates from multiple sources and manage your personal collection. Track value changes and gain insights into your library's worth.
- Smart scanning and recognition
- Accurate price estimation
- Personal collection management
- Real-time market analysis
- Value tracking over time
- Offline collection access
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Discover the true value of your book collection with BookSnap: Book Value Scanner! - Smart Scanning & Recognition Simply snap a photo or scan the barcode, and our app will automatically identify your book and provide detailed information about the title. - Accurate Price Estimation Get real-time market value estimates based on current data from multiple trusted sources including online marketplaces and book dealers. - Personal Collection Management Build and organize your personal book collection with ease. Track your library, monitor value changes, and discover insights about your collection's worth. + Key Features: Instant book recognition via camera or barcode scanner Real-time price estimation and market analysis Personal collection tracker and organizer Detailed book information and metadata Value tracking over time Clean, intuitive interface Offline collection access Whether you're a book collector, dealer, or simply curious about your library's value, BookSnap: Book Value Scanner makes it easy to discover what your books are worth in today's market. Perfect for: Book collectors and enthusiasts Used book dealers Library organizers Students selling textbooks Anyone curious about book values Download now and turn your smartphone into a powerful book appraisal tool! Note: Market values are estimates based on recent sales data and should be used as reference only. Actual selling prices may vary based on condition, demand, and market factors. Premium features available through subscription. Terms of Use: https://sites.google.com/view/ssvietnam-termsofservice Privacy Policy: https://sites.google.com/view/ssvietnam-termsofservice/policy
Reader King
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Reader King is a local-first eBook reader for organizing, importing and reading personal files on iPhone, iPad and Mac. It does not require registration, sign-in or a cloud account. Your books, reading progress, bookmarks and reading history stay in the app sandbox on your device. You can import common document and eBook files from Files, Finder or system sharing, including PDF, EPUB, TXT, Markdown, RTF, MOBI, AZW, AZW3, CBZ, FB2 and HTML. Reader King copies imported files into its local sandbox so access does not depend on temporary external file permissions. The built-in reader focuses on PDF reading in this release, with automatic page progress, search, outline, bookmarks, page jump, single-page and double-page layouts, and reader preferences. Other supported eBook formats can be imported, archived, downloaded and managed locally. Reader King also supports network subscriptions. Add a direct eBook download link, or provide a JSON, CSV or plain text manifest to parse and download multiple books into your shelf. Downloads only happen from links you enter. Highlights: - Local import from iPhone, iPad and Mac. - PDF reading with progress, search, outline, bookmarks and page jump. - Direct link downloads and batch manifest subscriptions. - Responsive shelf layouts for phone, tablet and desktop. - Mac support for Finder import, drag and drop, menu shortcuts and Settings. - No account, no third-party analytics and no uploaded reading records.
Screenshots
Verdict
The clearest difference is ads: Reader King at none against BookSnap's shown. BookSnap's advantage is update cadence (every 2 weeks vs every 4 weeks) and iOS requirement (15.0 vs 18.6). On price, in-app purchases 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. BookSnap sells 2 in-app purchases, starting at $4.99 per 7 days and Reader King sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
BookSnap ships an update every 2 weeks, Reader King every 4 weeks. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.
| Parameter | BookSnap | Reader King |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (127 ratings) — better | — |
| Positive reviews | 85.0% of reviews | — |
| Number of ratings | 127 — better | — |
| Update frequency | Every 2 weeks — better | Every 4 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 86 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | S&S VIET NAM COMPANY LIMITED | lecoo |
Bugs and requests
BookSnap
Reported bugs
2 issues- Mistakes book titles for other books
- No option to cancel subscription
Requested features
2 requests- Ability to report errors in book identification
- Option to easily cancel subscription
Reader King
Not enough reviews yet to summarise bugs or requests.
In-app purchases
BookSnap
- Premium Weekly$4.997 Days
- Premium Yearly$39.991 Year
Reader King
- Reader King Enhanced$0.99









