# Open Scanner vs Klerk

The clearest difference is ratings volume: Open Scanner at 192 against Klerk's 1. Klerk's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Klerk holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Open Scanner has 192 ratings behind it against 1, so its average is the more settled of the two.

Open Scanner ships an update every 10 days, Klerk every 6 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Open Scanner | Klerk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (192 ratings)](https://appshunter.io/ios/app/open-scanner-pdf-scanning/id6578414558/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/klerk/id6757318345/reviews)** |
| Number of ratings | **192** | 1 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | Free | Free |
| Size | 1 MB | 64 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Pencil Research](https://appshunter.io/developer/1473063859) | [Kerbz Adventures, Inc.](https://appshunter.io/developer/1750997088) |

## What reviewers say

### Open Scanner

[App page](https://appshunter.io/ios/app/open-scanner-pdf-scanning/id6578414558)

Transform your device into a powerful document scanner. Quickly capture papers, automatically recognize text, and organize your scans with AI-powered features. Seamlessly share and edit your documents in various formats.

**Highlights:** Automatic text recognition (OCR), Automatic document naming, Location-based tagging, Add saved signatures, Organize and re-order pages, iCloud sync, Annotate and edit scans, Export as PDF

**Features:** Vision Pro support

**In-app purchases:** none


### Klerk

[App page](https://appshunter.io/ios/app/klerk/id6757318345)

Manage events from registration to check-in, communication, and invoicing. Streamline your entire event workflow with tools for organizers of driving experiences and adventure activities.

**Highlights:** Event management dashboard, Attendee registration and check-in, QR code scanning for check-ins, Invoicing and agreement creation, Thread-based messaging, Real-time push notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Open Scanner free?

Open Scanner is free to download, with no in-app purchases.

### Is Klerk free?

Klerk is free to download, with no in-app purchases.

### Which has better reviews, Open Scanner or Klerk?

Klerk is rated higher. Open Scanner averages 4.7 out of 5 from 192 ratings, while Klerk averages 5.0 from 1 ratings.

### Do Open Scanner or Klerk have ads?

Neither Open Scanner nor Klerk shows ads.

### Which is updated more often, Open Scanner or Klerk?

Open Scanner ships an update every 10 days, and Klerk every 6 days. Most recently, Open Scanner was updated on October 18, 2026 and Klerk on October 15, 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.*