# 3DM Viewer & Converter vs TD UC System Interface

The clearest difference is price: TD UC System Interface at Free against 3DM Viewer & Converter's $6.99. TD UC System Interface also leads on rating (4.0 vs 2.0) and update cadence (every 3 months vs every 77 months). 3DM Viewer & Converter's advantage is chart position (#194 vs unranked) and ratings volume (4 vs 1). On ads, in-app purchases and device support there is nothing between them.

TD UC System Interface is free to download; 3DM Viewer & Converter costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TD UC System Interface holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

3DM Viewer & Converter ships an update every 77 months, TD UC System Interface every 3 months. The most recent releases landed on October 29, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 3DM Viewer & Converter | TD UC System Interface |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/3dm-viewer-and-converter/id1515215142/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/td-uc-system-interface/id1599254238/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 77 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#194** | — |
| Size | 6 MB | 60 MB |
| Requires iOS | 16.6 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Victor Bovio](https://appshunter.io/developer/327627515) | [ESAB Group Inc](https://appshunter.io/developer/1053463271) |

## What reviewers say

### 3DM Viewer & Converter

[App page](https://appshunter.io/ios/app/3dm-viewer-and-converter/id1515215142)

**Currently charting:** #194 Top Paid · Productivity (US App Store)

View and convert 3DM model files to various CAD formats. Offers rendering controls, model information, and graphic manipulation tools. Supports loading files from archives.

**Highlights:** Open 3DM files, Export to STL, DXF, OBJ, 3DS, DAE, PLY, OFF, Load files from ZIP/RAR, Control rendering options, Clipping plane for interiors, View model info (bounding box, area, volume), Rotate, Pan, Zoom

**Features:** Vision Pro support

**In-app purchases:** none


### TD UC System Interface

[App page](https://appshunter.io/ios/app/td-uc-system-interface/id1599254238)

Monitor and control ESAB iSERIES Plasma Power Supplies in real-time. Add welding machine details and adjust power supply parameters directly from your mobile device.

**Highlights:** Real-time monitoring, Parameter control, Add welding machine details, View power supply parameters, Mobile device control

**In-app purchases:** none


## Frequently asked questions

### Is 3DM Viewer & Converter free?

3DM Viewer & Converter costs $6.99, with no in-app purchases.

### Is TD UC System Interface free?

TD UC System Interface is free to download, with no in-app purchases.

### Which has better reviews, 3DM Viewer & Converter or TD UC System Interface?

TD UC System Interface is rated higher. 3DM Viewer & Converter averages 2.0 out of 5 from 4 ratings, while TD UC System Interface averages 4.0 from 1 ratings.

### Do 3DM Viewer & Converter or TD UC System Interface have ads?

Neither 3DM Viewer & Converter nor TD UC System Interface shows ads.

### Which is updated more often, 3DM Viewer & Converter or TD UC System Interface?

3DM Viewer & Converter ships an update every 77 months, and TD UC System Interface every 3 months. Most recently, 3DM Viewer & Converter was updated on October 29, 2026 and TD UC System Interface on October 17, 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.*