# PaperRay vs Knut Book Scanner

PaperRay and Knut Book Scanner are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. PaperRay sells 1 one-off in-app purchase and Knut Book Scanner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PaperRay | Knut Book Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/paperray-secure-scanner/id6755643925/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 3 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [志业 方](https://appshunter.io/developer/1745239338) | [Jussi Rajaniemi](https://appshunter.io/developer/1759458881) |

## What reviewers say

### PaperRay

[App page](https://appshunter.io/ios/app/paperray-secure-scanner/id6755643925)

Transform your phone into a powerful document manager with professional scanning and absolute privacy. Extract text offline, organize with folders, and secure your files with app lock. Pay once for lifetime access to advanced features.

**Highlights:** Offline OCR text extraction, Smart search by content, date, title, iCloud Private Sync (Pro), App Lock with FaceID/TouchID, Enhanced scanning filters, Post-scan editing, Folder organization and renaming, Batch actions for multiple scans

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $14.99 | one-time |


### Knut Book Scanner

[App page](https://appshunter.io/ios/app/knut-book-scanner/id6760627620)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


## Frequently asked questions

### Is PaperRay free?

PaperRay is free to download, with in-app purchases available.

### Is Knut Book Scanner free?

Knut Book Scanner is free to download, with in-app purchases available.

### Do PaperRay or Knut Book Scanner have ads?

Neither PaperRay nor Knut Book Scanner shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*