# PQ One vs PDF Scanner & Simple Reader

The clearest difference is in-app purchases: PQ One at none against PDF Scanner & Simple Reader's 2. PQ One also leads on iOS requirement (12.0 vs 15.1). PDF Scanner & Simple Reader's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. PDF Scanner & Simple Reader sells 2 in-app purchases, starting at $0.99 per month. PQ One asks for nothing beyond the download.

PQ One ships an update every 3 weeks, PDF Scanner & Simple Reader weekly. The most recent releases landed on September 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PQ One | PDF Scanner & Simple Reader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 64 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Calidat GmbH](https://appshunter.io/developer/1477624591) | [KunWoo Kwon](https://appshunter.io/developer/1603506815) |

## What reviewers say

### PQ One

[App page](https://appshunter.io/ios/app/pq-one/id1477624592)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Scanner & Simple Reader

[App page](https://appshunter.io/ios/app/pdf-scanner-and-simple-reader/id6753705461)

Transform paper documents into searchable PDFs using your device's camera. Read, bookmark, and organize your scanned files offline with a simple, intuitive interface. Offers tools for page extraction and merging for efficient document management.

**Highlights:** Document scanning to PDF, Simple PDF reader with zoom, Continue reading from last page, Bookmark important pages, Offline PDF access, Extract and merge PDF pages

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove ads (one month) | $0.99 | per month |
| remove ads (life time) | $4.99 | one-time |


## Frequently asked questions

### Is PQ One free?

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

### Is PDF Scanner & Simple Reader free?

PDF Scanner & Simple Reader is free to download, with in-app purchases available.

### Do PQ One or PDF Scanner & Simple Reader have ads?

Neither PQ One nor PDF Scanner & Simple Reader shows ads.

### Which is updated more often, PQ One or PDF Scanner & Simple Reader?

PQ One ships an update every 3 weeks, and PDF Scanner & Simple Reader weekly. Most recently, PQ One was updated on September 26, 2026 and PDF Scanner & Simple Reader on October 14, 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.*