# 3D Lidar Viewer vs Cotech Scan

The clearest difference is update cadence: Cotech Scan at every 4 days against 3D Lidar Viewer's every 10 days. 3D Lidar Viewer's advantage is iOS requirement (15.6 vs 17.6). On price, ads, 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.

3D Lidar Viewer ships an update every 10 days, Cotech Scan every 4 days. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 3D Lidar Viewer | Cotech Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/3d-lidar-viewer/id1574614314/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 4 MB | 40 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HAN WEI WANG](https://appshunter.io/developer/928406183) | [iBoson Innovations](https://appshunter.io/developer/1449586655) |

## What reviewers say

### 3D Lidar Viewer

[App page](https://appshunter.io/ios/app/3d-lidar-viewer/id1574614314)

Visualize LiDAR and camera data in real-time 2D and 3D. Perform precise length and area measurements directly within the app. Save and revisit scenes for further analysis.

**Highlights:** Real-time 3D and 2D display, LiDAR and camera output visualization, Real-time length and area measurement, Scene saving and viewing, Adjustable exposure bias and depth view range, Panning display for camera view control

**Features:** macOS Compatibility

**In-app purchases:** none


### Cotech Scan

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D Lidar Viewer free?

3D Lidar Viewer is free to download, with no in-app purchases.

### Is Cotech Scan free?

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

### Do 3D Lidar Viewer or Cotech Scan have ads?

Neither 3D Lidar Viewer nor Cotech Scan shows ads.

### Which is updated more often, 3D Lidar Viewer or Cotech Scan?

3D Lidar Viewer ships an update every 10 days, and Cotech Scan every 4 days. Most recently, 3D Lidar Viewer was updated on October 11, 2026 and Cotech Scan on October 25, 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.*