# RZ vs CMS1600

The clearest difference is rating: CMS1600 at 4.5 against RZ's 1.0. RZ's advantage is iOS requirement (8.0 vs 15.0). On price, ratings volume, update cadence and ads 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 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

RZ ships an update every 3 months, CMS1600 every 6 months. The most recent releases landed on September 24, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RZ | CMS1600 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/rz-wd6/id1439409560/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/cms1600/id1620103169/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 44 MB | 7 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Hunan RamZed Medical Imaging Technology Co., Ltd](https://appshunter.io/developer/1394372494) | [Contec Medical Systems Co., Ltd.](https://appshunter.io/developer/908936493) |

## What reviewers say

### RZ

[App page](https://appshunter.io/ios/app/rz-wd6/id1439409560)

This medical imaging app connects wirelessly to a handheld ultrasound system, allowing users to control imaging parameters and modes in real-time. It offers a user-friendly interface for easy operation on iOS devices.

**Highlights:** Real-time imaging, Wireless network connection, Parameter control, Mode switching, Touch and gesture operation, User-friendly interface

**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 RZ free?

RZ 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, RZ or CMS1600?

CMS1600 is rated higher. RZ averages 1.0 out of 5 from 1 ratings, while CMS1600 averages 4.5 from 2 ratings.

### Do RZ or CMS1600 have ads?

Neither RZ nor CMS1600 shows ads.

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

RZ ships an update every 3 months, and CMS1600 every 6 months. Most recently, RZ was updated on September 24, 2026 and CMS1600 on October 24, 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.*