Comparison

Knut Book Scanner vs Neurons Reply

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Knut Book Scanner

Features
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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.

About

Neurons Reply

Features
Read full description

Neurons is the official Reply platform to build personal AI agents and scale knowledge across the organization. Empower your workflow: Create custom intelligent agents, share your expertise, and collaborate seamlessly with fellow Replyers. Neurons turns individual insights into collective intelligence, keeping your team smarter and one step ahead. Join the Reply Neurons community: turn knowledge into power.

Screenshots

Knut Book Scanner4 screens
Neurons Reply2 screens

Verdict

The call

The clearest difference is in-app purchases: Neurons Reply at none against Knut Book Scanner's 1. Neurons Reply also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Knut Book Scanner sells 1 one-off in-app purchase. Neurons Reply asks for nothing beyond the download.

Scorecard3 real differences · 5 level
Knut Book Scanner versus Neurons Reply: the parameters behind the verdict, then further details
ParameterKnut Book ScannerNeurons Reply
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 4 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size3 MB18 MB
Age rating4+4+
DeveloperJussi RajaniemiReply SpA

In-app purchases

1 purchases

Knut Book Scanner

One-time1
  • Full Version$2.99
None

Neurons Reply

No in-app purchases

Questions

Is Knut Book Scanner free?
Knut Book Scanner is free to download, with in-app purchases available.
Is Neurons Reply free?
Neurons Reply is free to download, with no in-app purchases.
Do Knut Book Scanner or Neurons Reply have ads?
Neither Knut Book Scanner nor Neurons Reply shows ads.

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