# GAMMA AR vs Trimble SiteVision

The clearest difference is review sentiment: GAMMA AR at 86% against Trimble SiteVision's 0%. GAMMA AR also leads on rating (4.6 vs 3.8) and update cadence (every 2 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

GAMMA AR holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews point the same way: 86% of GAMMA AR's written reviews are positive against 0% of Trimble SiteVision's.

GAMMA AR ships an update every 2 weeks, Trimble SiteVision every 3 months. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | GAMMA AR | Trimble SiteVision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/gamma-ar/id1298017298/reviews)** | [3.8 (6 ratings)](https://appshunter.io/ios/app/trimble-sitevision/id1535590619/reviews) |
| Number of ratings | **8** | 6 |
| Positive reviews | **85.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 384 MB | 255 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GAMMA Technologies](https://appshunter.io/developer/1495307075) | [Trimble Inc.](https://appshunter.io/developer/322561665) |

## What reviewers say

### GAMMA AR

[App page](https://appshunter.io/ios/app/gamma-ar/id1298017298)

Visualize 3D BIM models on construction sites using augmented reality. Compare real-world conditions with plans, detect errors early, and improve communication between site and office. Streamline workflows and reduce costs.

**Highlights:** Augmented reality BIM overlay, On-site construction monitoring, Error detection and prevention, Digital communication channels, Integration with Autodesk, Procore, BIMCollab, BIM model synchronization

**Features:** Vision Pro support

**In-app purchases:** none


### Trimble SiteVision

[App page](https://appshunter.io/ios/app/trimble-sitevision/id1535590619)

Visualize digital designs in the real world with augmented reality. Collaborate with your team to detect errors, capture issues with AR photos, and measure progress. Supports various industry data formats and offline work.

**Highlights:** Augmented reality visualization, Error detection and conflict resolution, AR site photo capture, Cloud-enabled collaboration, Progress and as-built measurements, Offline support, Support for BIM, CAD, and GIS data

**In-app purchases:** none


## Frequently asked questions

### Is GAMMA AR free?

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

### Is Trimble SiteVision free?

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

### Which has better reviews, GAMMA AR or Trimble SiteVision?

GAMMA AR is rated higher. GAMMA AR averages 4.6 out of 5 from 8 ratings, while Trimble SiteVision averages 3.8 from 6 ratings.

### Do GAMMA AR or Trimble SiteVision have ads?

Neither GAMMA AR nor Trimble SiteVision shows ads.

### Which is updated more often, GAMMA AR or Trimble SiteVision?

GAMMA AR ships an update every 2 weeks, and Trimble SiteVision every 3 months. Most recently, GAMMA AR was updated on October 26, 2026 and Trimble SiteVision on October 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.*