# CMS1600 vs Uscan Pro

The clearest difference is update cadence: Uscan Pro at every 3 weeks against CMS1600's every 9 months. 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.

CMS1600 ships an update every 9 months, Uscan Pro every 3 weeks. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CMS1600 | Uscan Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 7 MB | 7 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Contec Medical Systems Co., Ltd.](https://appshunter.io/developer/908936493) | [徐州永康电子科技有限公司](https://appshunter.io/developer/1095223244) |

## What reviewers say

### CMS1600

[App page](https://appshunter.io/ios/app/cms1600-vet/id6474657919)

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

**In-app purchases:** none


### Uscan Pro

[App page](https://appshunter.io/ios/app/uscan-pro/id6478587489)

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

**In-app purchases:** none


## Frequently asked questions

### Is CMS1600 free?

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

### Is Uscan Pro free?

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

### Do CMS1600 or Uscan Pro have ads?

Neither CMS1600 nor Uscan Pro shows ads.

### Which is updated more often, CMS1600 or Uscan Pro?

CMS1600 ships an update every 9 months, and Uscan Pro every 3 weeks. Most recently, CMS1600 was updated on October 18, 2026 and Uscan Pro on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*