Knut Book Scanner vs Scanolio

Knut: Book Scanner & PDF turns your iPhone into a fast, privacy-first book scanner. Place your book on a scanning stand, and the app captures two pages at once, splits them automatically, and generates a ready-to-share PDF — all without touching the cloud. BUILT FOR READERS WHO VALUE PRIVACY Every image you capture, every PDF you create, and every setting you choose stays on your device. No accounts. No cloud uploads. No analytics. No ads. We do not collect a single byte of your data. HOW IT WORKS 1. Place your book on a scanning stand and position your iPhone above it. 2. Tap capture — or enable smart auto-capture to scan hands-free. The app detects when a page is ready and captures automatically. 3. When you stop scanning, your pages are assembled into a PDF automatically. Share it anywhere with one tap. KEY FEATURES - Two Pages Per Capture — Photograph an open book and the app splits the image into individual pages automatically. One shot, two pages, every time. - Smart Auto-Capture — Powered by Vision-based document detection. The app recognizes when a page is settled and captures automatically — no fixed timers. A live confidence overlay shows green when the page is ready, amber while settling, and hides during page turns — so you always know when the next capture will fire. A configurable capture pause lets you turn pages at your own speed, and a fallback timer ensures no page is missed. - Adjustable Crop with Mirror Symmetry — Set your crop rectangle once and fine-tune it to frame your pages. Mirror symmetry applies the same adjustment to both pages — one setting, two perfect crops. - Zoom & Torch Control — Adjust camera zoom to frame your scanning stand perfectly. Toggle the torch for consistent lighting in any environment. - Instant PDF Generation — Your scanned pages become a shareable PDF the moment you stop scanning. No extra steps, no conversion waiting. - PDF Library — Browse, rename, sort, and preview all your scanned books in one place. Multi-select to share or export multiple PDFs at once. - Three Quality Presets — Choose High (maximum detail), Normal (balanced), or Compact (smallest file size) depending on your needs. - 66+ Languages — Use the app in your language. From Arabic to Vietnamese, Knut supports over 66 languages out of the box. - 100% Offline — Works without an internet connection. Your library is always accessible, wherever you are. SIMPLE PRICING Try the full app with 500 free pages. If you like it, unlock unlimited scanning for $2.99 — one-time, no subscription. All future updates included. PERFECT FOR - Students digitizing textbook chapters and lecture handouts - Researchers archiving journal articles and reference material - Book lovers preserving personal libraries - Professionals scanning manuals, contracts, and reference documents - Anyone who needs book pages in PDF without a flatbed scanner Download Knut: Book Scanner & PDF and start building your digital library today.

Scanolio turns your phone into a fast, accurate scanner for textbooks, notes, and documents — no subscriptions, no clutter, just clean scans in seconds. Point your camera at any textbook page or document and Scanolio automatically detects its edges, corrects the perspective, and produces a crisp, flat page — even if you're holding the camera at an angle. FEATURES - Automatic edge detection — no manual alignment needed - Perspective correction for perfectly flat, readable pages - Adjustable sharpening and quality settings for every scan - Multi-page documents with easy reordering and re-scanning - Organize scans into folders, right on your device - Export to PDF and share instantly with any app - Re-crop any page anytime, even after saving Whether it's a textbook chapter, a receipt, a contract, or handwritten notes, Scanolio gets you a clean, shareable document in a few taps.