# SimLab CAD Viewer vs Trimble

The clearest difference is rating: Trimble at 3.4 against SimLab CAD Viewer's 1.8. Trimble also leads on ratings volume (29 vs 5). SimLab CAD Viewer's advantage is iOS requirement (8.0 vs 15.0). On price, review sentiment, 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.

Trimble holds the better App Store score, 3.4 against 1.8. That said, the two scores are not equally well evidenced: Trimble has 29 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 15% of SimLab CAD Viewer's written reviews are positive against 22% of Trimble's.

SimLab CAD Viewer ships an update every 6 weeks, Trimble every 3 weeks. The most recent releases landed on September 25, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SimLab CAD Viewer | Trimble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/simlab-cad-viewer/id428227180/reviews) | **[3.4 (29 ratings)](https://appshunter.io/ios/app/trimble-connect/id1076606537/reviews)** |
| Number of ratings | 5 | **29** |
| Positive reviews | 15.4% of reviews | **21.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 45 MB | 176 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simulation Lab Software](https://appshunter.io/developer/428227183) | [Trimble Inc.](https://appshunter.io/developer/322561665) |

## What reviewers say

### SimLab CAD Viewer

[App page](https://appshunter.io/ios/app/simlab-cad-viewer/id428227180)

View 3D CAD and architectural models on your mobile device. Navigate complex scenes with intuitive controls, explore different model configurations, and access files from various cloud storage services and email.

**Highlights:** View 3D CAD and architectural models, Navigate 3D scenes (rotate, pan, zoom), View different model configurations, Supports SimLab Archive (*.zim) files, Supports 3D PDF files, Access files from cloud storage and email

**Features:** macOS Compatibility

**In-app purchases:** none


### Trimble

[App page](https://appshunter.io/ios/app/trimble-connect/id1076606537)

This cloud-based platform facilitates collaboration for construction projects. It allows stakeholders to share, comment on, and manage project documents, photos, drawings, and 3D models across all project phases. Access information seamlessly on desktop, web, or mobile, even offline.

**Highlights:** Cloud-based project collaboration, Document, photo, drawing, and 3D model sharing, Offline access for field professionals, High-performance 3D model viewer, Task management (ToDos), Cross-platform accessibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SimLab CAD Viewer free?

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

### Is Trimble free?

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

### Which has better reviews, SimLab CAD Viewer or Trimble?

Trimble is rated higher. SimLab CAD Viewer averages 1.8 out of 5 from 5 ratings, while Trimble averages 3.4 from 29 ratings.

### Do SimLab CAD Viewer or Trimble have ads?

Neither SimLab CAD Viewer nor Trimble shows ads.

### Which is updated more often, SimLab CAD Viewer or Trimble?

SimLab CAD Viewer ships an update every 6 weeks, and Trimble every 3 weeks. Most recently, SimLab CAD Viewer was updated on September 25, 2026 and Trimble 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.*