# WirelessUSG vs CMS1600

The clearest difference is review sentiment: CMS1600 at 100% against WirelessUSG's 15%. CMS1600 also leads on rating (4.5 vs 2.8). WirelessUSG's advantage is update cadence (every 6 weeks vs every 6 months) and ratings volume (40 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CMS1600 holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: WirelessUSG has 40 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 15% of WirelessUSG's written reviews are positive against 100% of CMS1600's.

WirelessUSG ships an update every 6 weeks, CMS1600 every 6 months. The most recent releases landed on August 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | WirelessUSG | CMS1600 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (40 ratings)](https://appshunter.io/ios/app/wirelessusg/id1119528321/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/cms1600/id1620103169/reviews)** |
| Number of ratings | **40** | 2 |
| Positive reviews | 15.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 22 MB | 7 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [SonoStarMed](https://appshunter.io/developer/1113993886) | [Contec Medical Systems Co., Ltd.](https://appshunter.io/developer/908936493) |

## 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


### CMS1600

[App page](https://appshunter.io/ios/app/cms1600/id1620103169)

This advanced wireless ultrasound imaging system provides real-time, clear color ultrasound images across multiple work modes. It supports a wide range of examinations and includes powerful image processing and patient management features. Connect wirelessly for greater freedom of use.

**Highlights:** Multiple work modes (B, CDFI, M, PW), Supports various examinations (abdominal, OB/GYN, vascular, cardiac), Powerful image processing and optimization, Image and video annotation, saving, and DICOM storage, Patient management system, Wireless WiFi connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is WirelessUSG free?

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

### Is CMS1600 free?

CMS1600 is free to download, with no in-app purchases.

### Which has better reviews, WirelessUSG or CMS1600?

CMS1600 is rated higher. WirelessUSG averages 2.8 out of 5 from 40 ratings, while CMS1600 averages 4.5 from 2 ratings.

### Do WirelessUSG or CMS1600 have ads?

Neither WirelessUSG nor CMS1600 shows ads.

### Which is updated more often, WirelessUSG or CMS1600?

WirelessUSG ships an update every 6 weeks, and CMS1600 every 6 months. Most recently, WirelessUSG was updated on August 1, 2026 and CMS1600 on September 14, 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.*