# PDF Masker vs KlarScan

The clearest difference is rating: KlarScan at 5.0 against PDF Masker's 2.0. KlarScan also leads on ads (none vs shown) and update cadence (every 6 days vs monthly). PDF Masker's advantage is monetization model (ad-supported vs freemium) and iOS requirement (15.0 vs 18.0). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Masker sells 1 one-off in-app purchase and KlarScan sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

KlarScan holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

PDF Masker ships an update monthly, KlarScan every 6 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | PDF Masker | KlarScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/pdf-masker-secure-redaction/id6748043661/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/klarscan-document-scanner/id6801194724/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 14 MB | 12 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) | [BYTEPOTATO UG (haftungsbeschraenkt)](https://appshunter.io/developer/1864772555) |

## What reviewers say

### PDF Masker

[App page](https://appshunter.io/ios/app/pdf-masker-secure-redaction/id6748043661)

Easily mask sensitive keywords in PDF files before sharing. Import PDFs, specify multiple keywords, and customize redaction colors. Export as text or image-based PDFs for secure data sharing.

**Highlights:** Import PDFs via Share menu, Bulk keyword redaction, Export as text or image PDF, Multiple keyword support, Customizable redaction color, Save keyword histories

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### KlarScan

[App page](https://appshunter.io/ios/app/klarscan-document-scanner/id6801194724)

This app transforms paper documents into organized PDFs directly on your device. It offers robust editing, permanent redaction, and searchable text capabilities, all while operating offline without any networking code or sign-ups.

**Highlights:** Offline scanning and editing, Permanent redaction, Searchable PDFs with on-device OCR, Adjustable export quality and size, Library with full-text search and tagging, On-device encrypted storage, iPad optimized with keyboard support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| Full version | $3.99 | one-time |


## Frequently asked questions

### Is PDF Masker free?

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

### Is KlarScan free?

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

### Which has better reviews, PDF Masker or KlarScan?

KlarScan is rated higher. PDF Masker averages 2.0 out of 5 from 1 ratings, while KlarScan averages 5.0 from 1 ratings.

### Do PDF Masker or KlarScan have ads?

PDF Masker shows ads; KlarScan does not.

### Which is updated more often, PDF Masker or KlarScan?

PDF Masker ships an update monthly, and KlarScan every 6 days. Most recently, PDF Masker was updated on October 24, 2026 and KlarScan on October 29, 2026.

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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.*