# Voltcraft WIFI Scope vs Comtrade Viewer

The clearest difference is iOS requirement: Voltcraft WIFI Scope at 9.0 against Comtrade Viewer's 15.0. 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.

Voltcraft WIFI Scope ships an update every 3 weeks, Comtrade Viewer fortnightly. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Voltcraft WIFI Scope | Comtrade Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 26 MB | 4 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CEI Conrad Electronic International (HK) Limited](https://appshunter.io/developer/756357900) | [Russell Patterson](https://appshunter.io/developer/1723606459) |

## What reviewers say

### Voltcraft WIFI Scope

[App page](https://appshunter.io/ios/app/voltcraft-wifi-scope/id1097236154)

**Features:** macOS Compatibility

**In-app purchases:** none


### Comtrade Viewer

[App page](https://appshunter.io/ios/app/comtrade-viewer/id1469713323)

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

**In-app purchases:** none


## Frequently asked questions

### Is Voltcraft WIFI Scope free?

Voltcraft WIFI Scope is free to download, with no in-app purchases.

### Is Comtrade Viewer free?

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

### Do Voltcraft WIFI Scope or Comtrade Viewer have ads?

Neither Voltcraft WIFI Scope nor Comtrade Viewer shows ads.

### Which is updated more often, Voltcraft WIFI Scope or Comtrade Viewer?

Voltcraft WIFI Scope ships an update every 3 weeks, and Comtrade Viewer fortnightly. Most recently, Voltcraft WIFI Scope was updated on September 10, 2026 and Comtrade Viewer on September 17, 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.*