# PDF. Scanner. vs Petra

The clearest difference is in-app purchases: Petra at none against PDF. Scanner.'s 3. PDF. Scanner.'s advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF. Scanner. sells 3 one-off in-app purchases. Petra asks for nothing beyond the download.

PDF. Scanner. ships an update every 5 weeks, Petra every 3 months. The most recent releases landed on September 17, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PDF. Scanner. | Petra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 19 MB | 10 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Juergen Koller Software GmbH](https://appshunter.io/developer/1604001664) | [Mathias Palm](https://appshunter.io/developer/894444356) |

## What reviewers say

### PDF. Scanner.

[App page](https://appshunter.io/ios/app/pdf-scanner/id6472706694)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 AI Names | $1.99 | one-time |
| 200 AI Names | $4.99 | one-time |
| 500 AI Names | $8.99 | one-time |


### Petra

[App page](https://appshunter.io/ios/app/petra-split-costs/id6740541447)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF. Scanner. free?

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

### Is Petra free?

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

### Do PDF. Scanner. or Petra have ads?

Neither PDF. Scanner. nor Petra shows ads.

### Which is updated more often, PDF. Scanner. or Petra?

PDF. Scanner. ships an update every 5 weeks, and Petra every 3 months. Most recently, PDF. Scanner. was updated on September 17, 2026 and Petra on September 30, 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.*