BookScan vs DualTextScanner
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
BookScan
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Turn any physical book, handwritten notes and document into AI-ready knowledge in minutes. Scan 100 pages in just 3 minutes with your phone. Skip the tedious typing and instantly digitize your entire library. BookScan converts physical books, documents, handwritten notes, and more into clean digital text that works with NotebookLM, Perplexity, and other AI apps. Whether you're a researcher building knowledge bases, a student creating study materials, or a professional archiving important documents, BookScan makes physical text instantly accessible to modern AI workflows. Key Features: - Lightning-Fast Scanning: Scans 100 pages in under 3 minutes. - Superior OCR Accuracy: Advanced optical character recognition technology ensures precise text capture. - AI-Ready Export Formats: Export directly to Markdown, PDF, and plain text formats optimized for knowledge management systems and AI applications. - Multi-Language Support: Recognizes text in English, French, Spanish, Chinese, Korean, Japanese, German, Italian, and Portuguese with native accuracy. - Smart Document Processing: Automatically removes shadows, adjusts lighting, and straightens pages for optimal text recognition. - Privacy-Focused: Your scans and documents are stored locally on your device. Perfect for researchers who need to digitize reference materials, students converting textbooks and handwritten notes for AI-assisted study sessions, professionals archiving physical contracts and reports, and knowledge workers building searchable document libraries. Transform your physical books into a powerful digital knowledge base. Download BookScan today and unlock the knowledge trapped in your physical books! Terms of Use: https://isomem.com/terms-of-use Privacy Policy: https://isomem.com/bookscan-privacy-policy
DualTextScanner
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DualText Scanner is a book scanner app for iPhone and iPad that lets you capture, enhance, read, search, and organize paper books and PDFs. Photograph book pages one by one and save them as easy-to-read digital data. Captured pages can be enhanced with distortion correction, shadow removal, whitening, contrast adjustment, and text enhancement. β Free Version and Pro Version This app is free to download. The free version lets you save up to two books and try scanning, image correction, OCR, and the built-in viewer. By upgrading to the Pro version through an in-app purchase, the book limit is removed. As long as your device has enough storage space, you can manage paper books and PDFs as your own searchable digital bookshelf. The Pro version is a one-time purchase upgrade, not a subscription. β Manage Scans by Book Scanned pages are managed by book. If you stop scanning partway through, you can check the next page number and resume later. You can gradually add pages and build your digital bookshelf over time. β Easy Capture and Page Correction When taking photos, the app displays a document detection overlay to help you check the page area. After capturing a page, you can manually adjust the four corners to correct open books or slightly curved pages. Perspective correction, shadow removal, whitening, and text enhancement help turn paper pages into clean, readable images. β Vertical and Horizontal OCR DualText Scanner supports OCR for both vertical and horizontal Japanese text. You can extract text from novels, practical books, reference materials, textbooks, and other book pages. You can also exclude top, bottom, left, and right areas from OCR. This helps avoid page numbers, chapter titles, margins, or repeated text, making it easier to focus on the main text. Extracted text can be edited while viewing the page image. On iPad or in landscape orientation, the image and text editor can be displayed side by side. β Export Searchable PDFs Captured pages can be exported as PDF files. By embedding OCR text into the PDF, you can create searchable PDFs for computers. β Export Text as CSV or Plain Text OCR text can be reviewed by book and exported as CSV or plain text. This is useful for study, research, note organization, checking text before quoting, and working with other apps. β E-Book Style Viewer Saved pages can be read in the built-in viewer. You can choose horizontal or vertical page turning, depending on the book and your preferred reading style. The viewer includes keyword search and search history, allowing you to quickly move to pages that contain the words you are looking for. β Clip Feature You can save favorite passages or sections as clips. Each clip can include the book title, author, page number, and text. Clips can be viewed across books and are useful for reading notes, study notes, and organizing references. Saved clips can also be copied or exported as CSV. β PDF Import You can import existing PDFs, convert each page into an image, and register them as book data. Imported PDFs can also be used with image correction, OCR, text editing, and viewer reading. β Backup and Restore You can back up book images, extracted text, clips, settings, and other data together. The backup destination can be selected by the user, such as iCloud Drive or the Files app. By restoring a backup file on another device, you can recreate the same book environment. β Privacy DualText Scanner does not send book images or extracted text to our company servers. Main processing such as image correction and OCR is performed on the device. When sharing PDFs, CSV files, extracted text, or other data with external apps or cloud services, please check the terms and privacy policy of the destination service and manage the data at your own discretion. DualText Scanner helps you create book data that you can read, search, and use later. Organize your important books as your own searchable digital bookshelf.
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Verdict
BookScan and DualTextScanner are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. BookScan sells 4 in-app purchases, starting at $4.99 per 7 days and DualTextScanner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
BookScan ships an update monthly, DualTextScanner every 2 months. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.
| Parameter | BookScan | DualTextScanner |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.1 β better | 16.0 |
| Further details β not scored | ||
| Size | 92 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | ISOMEM, Inc. | AIγγΈγ§γ³γγ―γγγΈγΌζ ͺεΌδΌη€Ύ |
In-app purchases
BookScan
- Unlimited Access$4.997 Days
- Unlimited Access3 Days trial$4.997 Days
- Unlimited Access$29.991 Year
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- Unlimited Access3 Days trial$29.991 Year
DualTextScanner
- DualText Scanner Pro$2.99
Questions
Is BookScan free?
Is DualTextScanner free?
Do BookScan or DualTextScanner have ads?
Which is updated more often, BookScan or DualTextScanner?
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