# WirelessUSG vs Lumen

The clearest difference is price: WirelessUSG at Free against Lumen's $9.99. WirelessUSG also leads on iOS requirement (12.0 vs 17.0). Lumen's advantage is update cadence (fortnightly vs every 6 weeks). On ads, in-app purchases and device support there is nothing between them.

WirelessUSG is free to download; Lumen costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WirelessUSG ships an update every 6 weeks, Lumen fortnightly. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | WirelessUSG | Lumen |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[2.8 (41 ratings)](https://appshunter.io/ios/app/wirelessusg/id1119528321/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 15.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 22 MB | 166 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 12+ | 4+ |
| Developer | [SonoStarMed](https://appshunter.io/developer/1113993886) | [Marco Tini](https://appshunter.io/developer/544232459) |

## What reviewers say

### WirelessUSG

[App page](https://appshunter.io/ios/app/wirelessusg/id1119528321)

This app connects to a wireless ultrasound probe via WiFi to display real-time imaging on Apple devices. It facilitates rapid detection and image freezing for reference purposes. Additional usage information is available via a provided web link.

**Highlights:** Wireless probe connection, Real-time ultrasound imaging, Image freezing function, Rapid detection, FDA and China NMPA certified probe compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumen

[App page](https://appshunter.io/ios/app/lumen-dicom-viewer/id6776353922)

**In-app purchases:** none


## Frequently asked questions

### Is WirelessUSG free?

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

### Is Lumen free?

Lumen costs $9.99, with no in-app purchases.

### Do WirelessUSG or Lumen have ads?

Neither WirelessUSG nor Lumen shows ads.

### Which is updated more often, WirelessUSG or Lumen?

WirelessUSG ships an update every 6 weeks, and Lumen fortnightly. Most recently, WirelessUSG was updated on October 24, 2026 and Lumen on October 20, 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.*