# WFS210 vs Comtrade Viewer

The clearest difference is update cadence: Comtrade Viewer at fortnightly against WFS210's every 3 months. Comtrade Viewer also leads on device support (3 vs 1). WFS210's advantage is iOS requirement (8.0 vs 15.0). On price, 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.

WFS210 ships an update every 3 months, Comtrade Viewer fortnightly. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | WFS210 | Comtrade Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 23 MB | 4 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Velleman nv](https://appshunter.io/developer/456579607) | [Russell Patterson](https://appshunter.io/developer/1723606459) |

## What reviewers say

### WFS210

[App page](https://appshunter.io/ios/app/wfs210/id933118232)

This application controls a portable, battery-powered digital storage oscilloscope designed for tablet use. It allows users to connect to the device's WLAN network and begin measurements immediately.

**Highlights:** WLAN connectivity, Dual channel oscilloscope, Tablet control, Portable and battery-powered, Source code available

**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 WFS210 free?

WFS210 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 WFS210 or Comtrade Viewer have ads?

Neither WFS210 nor Comtrade Viewer shows ads.

### Which is updated more often, WFS210 or Comtrade Viewer?

WFS210 ships an update every 3 months, and Comtrade Viewer fortnightly. Most recently, WFS210 was updated on September 29, 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.*