# cMT Viewer vs AD

The clearest difference is update cadence: AD at weekly against cMT Viewer's every 2 months. cMT Viewer's advantage is iOS requirement (12.0 vs 17.0). 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.

cMT Viewer ships an update every 2 months, AD weekly. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | cMT Viewer | AD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/cmt-viewer/id553431850/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 67 MB | 63 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Weintek Labs., Inc.](https://appshunter.io/developer/553431853) | [US Dairy Systems, Inc.](https://appshunter.io/developer/1655636400) |

## What reviewers say

### cMT Viewer

[App page](https://appshunter.io/ios/app/cmt-viewer/id553431850)

This application allows for the visual control of HMI hardware and software directly on an iPad. It offers seamless integration with powerful project editor software, enabling intuitive multi-touch gesture operation for data display and trend analysis.

**Highlights:** Multiple iPad clients, Simultaneous operation of multiple HMI servers, Intuitive multi-touch gestures, Fluid and vivid visualization, Account management for access privileges, Hot project switching

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

**In-app purchases:** none


### AD

[App page](https://appshunter.io/ios/app/ad-connect/id6444612556)

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

**In-app purchases:** none


## Frequently asked questions

### Is cMT Viewer free?

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

### Is AD free?

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

### Do cMT Viewer or AD have ads?

Neither cMT Viewer nor AD shows ads.

### Which is updated more often, cMT Viewer or AD?

cMT Viewer ships an update every 2 months, and AD weekly. Most recently, cMT Viewer was updated on October 9, 2026 and AD on October 2, 2026.

---

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