# Lichtregulator vs Rausch Viewer App

The clearest difference is update cadence: Rausch Viewer App at every 5 weeks against Lichtregulator's every 20 months. Lichtregulator's advantage is iOS requirement (10.3 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Lichtregulator ships an update every 20 months, Rausch Viewer App every 5 weeks. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Lichtregulator | Rausch Viewer App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 5 weeks** |
| Size | 17 MB | 16 MB |
| Requires iOS | **10.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Elektron Berlin](https://appshunter.io/developer/1486563275) | [Rausch Electronics GmbH](https://appshunter.io/developer/1181037462) |

## What reviewers say

### Lichtregulator

[App page](https://appshunter.io/ios/app/lichtregulator/id1486563396)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rausch Viewer App

[App page](https://appshunter.io/ios/app/rausch-viewer-app/id6759593499)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lichtregulator free?

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

### Is Rausch Viewer App free?

Rausch Viewer App is free to download, with no in-app purchases.

### Do Lichtregulator or Rausch Viewer App have ads?

Neither Lichtregulator nor Rausch Viewer App shows ads.

### Which is updated more often, Lichtregulator or Rausch Viewer App?

Lichtregulator ships an update every 20 months, and Rausch Viewer App every 5 weeks. Most recently, Lichtregulator was updated on October 19, 2026 and Rausch Viewer App on October 10, 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.*