# BIMx vs Structural Navigator

The clearest difference is rating: Structural Navigator at 5.0 against BIMx's 4.0. Structural Navigator also leads on monetization model (free vs free with in-app purchases) and iOS requirement (9.1 vs 16.0). BIMx's advantage is ratings volume (167 vs 1) and update cadence (every 5 weeks vs every 5 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.

Structural Navigator holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: BIMx has 167 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 60% of BIMx's written reviews are positive against 50% of Structural Navigator's, so the app with the better star average is not the one people write more warmly about.

BIMx ships an update every 5 weeks, Structural Navigator every 5 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BIMx | Structural Navigator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (167 ratings)](https://appshunter.io/ios/app/bimx/id452706864/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/structural-navigator/id479978190/reviews)** |
| Number of ratings | **167** | 1 |
| Positive reviews | **59.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 175 MB | 90 MB |
| Requires iOS | 16.0 | **9.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Graphisoft SE](https://appshunter.io/developer/452706867) | [Bentley Systems, Inc.](https://appshunter.io/developer/457925574) |

## What reviewers say

### BIMx

[App page](https://appshunter.io/ios/app/bimx/id452706864)

Explore and collaborate on architectural BIM projects with interactive 3D models and linked documentation. Visualize designs, access BIM data, and streamline communication between the construction site and office.

**Highlights:** Interactive 2D & 3D BIM model exploration, Linked 2D documentation and 3D views, Access BIM element data, On-site collaboration tools, Game-like 3D navigation, Real-time 3D cutaways, Measure in 3D and 2D

**In-app purchases:** none

**What reviewers like**

- 💡 Excellent BIM viewer for ArchiCAD models
- 👍 Helpful for client communication and presentations
- 🚀 Smooth and fast 3D navigation
- 🔍 Useful for on-site model viewing and collaboration

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🤔 Confusing user interface for beginners
- 🔒 Requires Graphisoft account and login
- 💰 Paid subscription model after free trial

**Reported bugs**

- Issues with downloading and opening models
- Compatibility problems with newer iOS versions
- Inconsistent rendering and color issues

**Requested features**

- Ability to annotate and markup models
- Support for more CAD file formats beyond ArchiCAD
- Improved camera controls and navigation
- Integration with desktop ArchiCAD software


### Structural Navigator

[App page](https://appshunter.io/ios/app/structural-navigator/id479978190)

View, query, and annotate 3D structural models on your mobile device. Navigate complex designs with intuitive controls, filter elements by properties, and check for clashes. Ideal for on-site reviews and collaboration.

**Highlights:** 3D model navigation (zoom, rotate, pan), Color-coding by element properties, Filtering models by member attributes, Clash detection between objects, Adding markups with status and due dates, Interactive querying of member properties

**In-app purchases:** none


## Frequently asked questions

### Is BIMx free?

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

### Is Structural Navigator free?

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

### Which has better reviews, BIMx or Structural Navigator?

Structural Navigator is rated higher. BIMx averages 4.0 out of 5 from 167 ratings, while Structural Navigator averages 5.0 from 1 ratings.

### Do BIMx or Structural Navigator have ads?

Neither BIMx nor Structural Navigator shows ads.

### Which is updated more often, BIMx or Structural Navigator?

BIMx ships an update every 5 weeks, and Structural Navigator every 5 months. Most recently, BIMx was updated on October 7, 2026 and Structural Navigator on October 5, 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.*