# Cotech Scan vs GLB Viewer

The clearest difference is ads: Cotech Scan at none against GLB Viewer's shown. Cotech Scan also leads on update cadence (every 4 days vs every 9 days). GLB Viewer's advantage is iOS requirement (15.0 vs 17.6). On price, 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.

Cotech Scan ships an update every 4 days, GLB Viewer every 9 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Cotech Scan | GLB Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 9 days |
| Size | 40 MB | 19 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iBoson Innovations](https://appshunter.io/developer/1449586655) | [Animesh Manna](https://appshunter.io/developer/6789635189) |

## What reviewers say

### Cotech Scan

[App page](https://appshunter.io/ios/app/cotech-scan/id6741158785)

**Features:** macOS Compatibility

**In-app purchases:** none


### GLB Viewer

[App page](https://appshunter.io/ios/app/glb-viewer-3d-model-viewer/id6792433740)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cotech Scan free?

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

### Is GLB Viewer free?

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

### Do Cotech Scan or GLB Viewer have ads?

GLB Viewer shows ads; Cotech Scan does not.

### Which is updated more often, Cotech Scan or GLB Viewer?

Cotech Scan ships an update every 4 days, and GLB Viewer every 9 days. Most recently, Cotech Scan was updated on November 8, 2026 and GLB Viewer on November 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.*