# Hark vs Simple Invoice Scanner

The clearest difference is in-app purchases: Hark at none against Simple Invoice Scanner's 1. Hark also leads on iOS requirement (15.0 vs 18.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Simple Invoice Scanner sells 1 one-off in-app purchase. Hark asks for nothing beyond the download.

Hark ships an update every 12 months, Simple Invoice Scanner every 7 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Hark | Simple Invoice Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 7 months** |
| Size | 6 MB | 9 MB |
| Requires iOS | **15.0** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hark GmbH & Co. KG Kamin- u. Kachelofenbau](https://appshunter.io/developer/1060001368) | [Hermann Rauschmayr](https://appshunter.io/developer/1834145250) |

## What reviewers say

### Hark

[App page](https://appshunter.io/ios/app/hark-pellet/id1060001369)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Invoice Scanner

[App page](https://appshunter.io/ios/app/simple-invoice-scanner/id6751234255)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Werbung entfernen | $1.99 | one-time |


## Frequently asked questions

### Is Hark free?

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

### Is Simple Invoice Scanner free?

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

### Do Hark or Simple Invoice Scanner have ads?

Neither Hark nor Simple Invoice Scanner shows ads.

### Which is updated more often, Hark or Simple Invoice Scanner?

Hark ships an update every 12 months, and Simple Invoice Scanner every 7 months. Most recently, Hark was updated on November 11, 2026 and Simple Invoice Scanner on November 5, 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.*