# SimLab AR/VR Viewer vs RTAB

The clearest difference is review sentiment: RTAB at 100% against SimLab AR/VR Viewer's 0%. RTAB also leads on rating (4.8 vs 3.4) and ratings volume (39 vs 5). SimLab AR/VR Viewer's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RTAB holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: RTAB has 39 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of SimLab AR/VR Viewer's written reviews are positive against 100% of RTAB's.

SimLab AR/VR Viewer ships an update every 6 weeks, RTAB every 4 months. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SimLab AR/VR Viewer | RTAB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/simlab-arvr-viewer/id1342622211/reviews) | **[4.8 (39 ratings)](https://appshunter.io/ios/app/rtab-map-3d-lidar-scanner/id1564774365/reviews)** |
| Number of ratings | 5 | **39** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 338 MB | 19 MB |
| Requires iOS | 15.0 | **14.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simulation Lab Software](https://appshunter.io/developer/428227183) | [Mathieu Labbe](https://appshunter.io/developer/1564774367) |

## What reviewers say

### SimLab AR/VR Viewer

[App page](https://appshunter.io/ios/app/simlab-arvr-viewer/id1342622211)

Explore interactive 3D and VR experiences prepared with SimLab Composer or VR Studio. View simulations, interact with mechanical assemblies, and collaborate in real-time multi-user sessions. Ideal for architects, engineers, educators, and designers.

**Highlights:** View VR training and educational simulations, Interact with prepared 3D objects, Deliver immersive learning experiences, Add measurements and notes, Join multi-user VR sessions, Sync wirelessly with desktop tools

**Features:** macOS Compatibility

**In-app purchases:** none


### RTAB

[App page](https://appshunter.io/ios/app/rtab-map-3d-lidar-scanner/id1564774365)

This utility app enables real-time 3D scanning and mapping of environments using LiDAR or RGB-D sensors. It features online loop closure detection and map optimization for immediate feedback, with export options for various 3D formats.

**Highlights:** Online 3D scanning and mapping, Loop closure detection and map correction, Save maps in DB format, Export in PLY, LAS, or OBJ, Multi-session mapping, AR/VR visualization mode

**In-app purchases:** none


## Frequently asked questions

### Is SimLab AR/VR Viewer free?

SimLab AR/VR Viewer is free to download, with no in-app purchases.

### Is RTAB free?

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

### Which has better reviews, SimLab AR/VR Viewer or RTAB?

RTAB is rated higher. SimLab AR/VR Viewer averages 3.4 out of 5 from 5 ratings, while RTAB averages 4.8 from 39 ratings.

### Do SimLab AR/VR Viewer or RTAB have ads?

Neither SimLab AR/VR Viewer nor RTAB shows ads.

### Which is updated more often, SimLab AR/VR Viewer or RTAB?

SimLab AR/VR Viewer ships an update every 6 weeks, and RTAB every 4 months. Most recently, SimLab AR/VR Viewer was updated on September 18, 2026 and RTAB on September 23, 2026.

---

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