# DWScanner vs Cold Knee Massager

The clearest difference is update cadence: Cold Knee Massager at every 3 weeks against DWScanner's every 6 weeks. Cold Knee Massager also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

DWScanner ships an update every 6 weeks, Cold Knee Massager every 3 weeks. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | DWScanner | Cold Knee Massager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dwscanner/id6446021213/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 158 MB | 33 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Dawei Medical (Jiangsu) Co.,Ltd](https://appshunter.io/developer/1675463297) | [海洋 刘](https://appshunter.io/developer/1736870190) |

## What reviewers say

### DWScanner

[App page](https://appshunter.io/ios/app/dwscanner/id6446021213)

This advanced wireless ultrasound imaging system provides real-time visualization for medical professionals. It connects wirelessly to compatible devices, offering portable and efficient diagnostic capabilities.

**Highlights:** Advanced wireless ultrasound imaging, Real-time visualization, Portable diagnostic tool, Connects to compatible devices

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

**In-app purchases:** none


### Cold Knee Massager

[App page](https://appshunter.io/ios/app/cold-knee-massager/id6770961174)

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

**In-app purchases:** none


## Frequently asked questions

### Is DWScanner free?

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

### Is Cold Knee Massager free?

Cold Knee Massager is free to download, with no in-app purchases.

### Do DWScanner or Cold Knee Massager have ads?

Neither DWScanner nor Cold Knee Massager shows ads.

### Which is updated more often, DWScanner or Cold Knee Massager?

DWScanner ships an update every 6 weeks, and Cold Knee Massager every 3 weeks. Most recently, DWScanner was updated on October 17, 2026 and Cold Knee Massager on October 9, 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.*