# 3GCos Site Viewer vs SLII®

The clearest difference is rating: 3GCos Site Viewer at 5.0 against SLII®'s 3.3. 3GCos Site Viewer also leads on review sentiment (100% vs 58%). SLII®'s advantage is ratings volume (28 vs 4) and iOS requirement (12.4 vs 17.0). On price, update cadence, 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.

3GCos Site Viewer holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: SLII® has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of 3GCos Site Viewer's written reviews are positive against 58% of SLII®'s.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on June 2, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 3GCos Site Viewer | SLII® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/3gcos-site-viewer/id423838445/reviews)** | [3.3 (28 ratings)](https://appshunter.io/ios/app/slii/id536473591/reviews) |
| Number of ratings | 4 | **28** |
| Positive reviews | **100.0% of reviews** | 58.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 19 MB | 47 MB |
| Requires iOS | 17.0 | **12.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Victory Enterprises](https://appshunter.io/developer/412696348) | [The Ken Blanchard Companies](https://appshunter.io/developer/417829677) |

## What reviewers say

### 3GCos Site Viewer

[App page](https://appshunter.io/ios/app/3gcos-site-viewer/id423838445)

Access live camera feeds, project updates, and team contact information for your construction projects. View images, blueprints, and connect with the design and client teams.

**Highlights:** Live camera feeds, Project updates, Team contact information, Images and blueprints, Design and client team contacts

**Features:** macOS Compatibility

**In-app purchases:** none


### SLII®

[App page](https://appshunter.io/ios/app/slii/id536473591)

This reference tool helps leaders and team members apply the SLII Model to improve relationships and performance. It provides guidance for critical leadership moments, offering diagnostic tools and actionable tips.

**Highlights:** Diagnosis wizard for development levels, Actionable tips for SLII principles, Interactive SLII Model visualization, On-demand expanded information, Guidance for leadership conversations

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 3GCos Site Viewer free?

3GCos Site Viewer is free to download, with no in-app purchases.

### Is SLII® free?

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

### Which has better reviews, 3GCos Site Viewer or SLII®?

3GCos Site Viewer is rated higher. 3GCos Site Viewer averages 5.0 out of 5 from 4 ratings, while SLII® averages 3.3 from 28 ratings.

### Do 3GCos Site Viewer or SLII® have ads?

Neither 3GCos Site Viewer nor SLII® shows ads.

### Which is updated more often, 3GCos Site Viewer or SLII®?

3GCos Site Viewer ships an update every 3 weeks, and SLII® every 3 weeks. Most recently, 3GCos Site Viewer was updated on June 2, 2026 and SLII® on September 10, 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.*