Shelf Scanner. vs ReadLevel AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shelf Scanner.
Easily discover the value of books by scanning barcodes or taking photos of entire shelves. Get live pricing data from major online sellers to maximize your profit when selling your books.
- Scan book barcodes for value
- Photo scan entire bookshelves
- Live pricing data
- Sell books for profit
- Source from major online sellers
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Find Valuable Books. That's what Shelf Scanner makes it easy to do, our app can: - Scan book barcodes to find their values - Take a photo of a bookshelf and find the value of each book on the shelf - Provide live pricing data on any book you scan With Shelf Scanner you can easy find what your bookshelf, those old books you have laying around, or books from thrift stores, are worth, and sell them for a profit. Unlike other book scanning apps, we provide live pricing data of what your book is worth, sourced from the largest online book sellers and based on current listing prices. This means you get the most money for your books, quick and easy. Download Shelf Scanner today and start turning books into cash. Terms Of Use can be found at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.termsfeed.com/live/619c315c-27b8-4e47-9aaf-20bad24d5d6e
ReadLevel AI
Instantly determine a book's reading level by scanning any page with advanced AI. Get age range, grade level, and language-specific scores for any text, even without a barcode or ISBN. Works offline with foreign language books and digital displays.
- AI-powered text analysis
- Instant reading level determination
- Supports age range and grade level
- Foreign language reading level scores
- Works without ISBN or barcodes
- Scans digital displays and photocopies
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This app analyzes any page from a book and instantly determines its reading level using advanced AI technology. Simply point your camera at a page of text, and get comprehensive reading level information including age range, grade level, English Lexile score, and foreign language reading levels. Unlike barcode scanning apps that require the book's ISBN and internet lookup, this app analyzes the actual text content. This means it works with: • Library books without visible barcodes • Old books or books with damaged covers • Photocopied pages or digital displays • Books without ISBN numbers • Foreign language books Our AI analyzes text complexity, vocabulary difficulty, sentence structure, and content sophistication to provide accurate reading levels. The analysis happens instantly with results in seconds. Get three standardized reading level formats: • Age Range (e.g., 8-10 years) • Grade Level (3rd grade) • Language Specific Reading Level (Lexile, HSK, CEFR, etc.) Need Help? Want to send feedback? Please contact our support at readlevelapp@gmail.com! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: ReadLevel AI at 100% against Shelf Scanner.'s 10%. ReadLevel AI also leads on rating (5.0 vs 4.5) and update cadence (every 3 months vs every 7 months). Shelf Scanner.'s advantage is ratings volume (252 vs 1). On price, ads, in-app purchases and monetization model 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. Shelf Scanner. sells 3 in-app purchases, starting at $4.99 per 7 days and ReadLevel AI sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
ReadLevel AI holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Shelf Scanner. has 252 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 10% of Shelf Scanner.'s written reviews are positive against 100% of ReadLevel AI's.
Shelf Scanner. ships an update every 7 months, ReadLevel AI every 3 months. The most recent releases landed on September 21, 2026 and August 1, 2026 respectively.
| Parameter | Shelf Scanner. | ReadLevel AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (252 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 9.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 252 — better | 1 |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabe Rogers | Isabella Lee-Rubio |
Customer experience
Shelf Scanner.
ReadLevel AI
In-app purchases
Shelf Scanner.
- Weekly Pro$4.997 Days
- Monthly Pro$15.991 Month
- Annual Pro7 Days trial$48.991 Year
ReadLevel AI
- Monthly Subscription$2.991 Month
- Pro Monthly Subscription$9.991 Month
- Scan Pack$0.99
Questions
Is Shelf Scanner. free?
Is ReadLevel AI free?
Which has better reviews, Shelf Scanner. or ReadLevel AI?
Do Shelf Scanner. or ReadLevel AI have ads?
Which is updated more often, Shelf Scanner. or ReadLevel AI?
Other comparisons
