# BIMx vs AI Viewer

The clearest difference is rating: BIMx at 4.0 against AI Viewer's 2.9. BIMx also leads on in-app purchases (none vs 1) and ads (none vs shown). AI Viewer's advantage is update cadence (fortnightly vs every 5 weeks) and iOS requirement (13.0 vs 16.0). On price, monetization model and device support there is nothing between them.

Both are free to download. AI Viewer sells 1 in-app purchase, starting at $24.99 per year. BIMx asks for nothing beyond the download.

BIMx holds the better App Store score, 4.0 against 2.9. That said, the two scores are not equally well evidenced: BIMx has 167 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 60% of BIMx's written reviews are positive against 29% of AI Viewer's.

BIMx ships an update every 5 weeks, AI Viewer fortnightly. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | BIMx | AI Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (167 ratings)](https://appshunter.io/ios/app/bimx/id452706864/reviews)** | [2.9 (14 ratings)](https://appshunter.io/ios/app/ai-viewer/id1505083223/reviews) |
| Number of ratings | **167** | 14 |
| Positive reviews | **59.8% of reviews** | 28.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 175 MB | 19 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Graphisoft SE](https://appshunter.io/developer/452706867) | [Vaibhav Singhal](https://appshunter.io/developer/1719416463) |

## 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


### AI Viewer

[App page](https://appshunter.io/ios/app/ai-viewer/id1505083223)

View Adobe Illustrator (.ai) files on your mobile device without needing a license. Convert .ai files to PDF or PNG, zoom in on previews, and easily locate Illustrator files stored on your device.

**Highlights:** Preview .ai files, Save as PDF or PNG, List all .ai files on device, Pinch to zoom, Remove ads permanently, Contact support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $24.99 | per year |


## Frequently asked questions

### Is BIMx free?

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

### Is AI Viewer free?

AI Viewer is free to download, with in-app purchases available.

### Which has better reviews, BIMx or AI Viewer?

BIMx is rated higher. BIMx averages 4.0 out of 5 from 167 ratings, while AI Viewer averages 2.9 from 14 ratings.

### Do BIMx or AI Viewer have ads?

AI Viewer shows ads; BIMx does not.

### Which is updated more often, BIMx or AI Viewer?

BIMx ships an update every 5 weeks, and AI Viewer fortnightly. Most recently, BIMx was updated on September 24, 2026 and AI Viewer on September 21, 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.*