# Carlson Scan3D vs Custom Observer App

The clearest difference is in-app purchases: Custom Observer App at none against Carlson Scan3D's 1. Carlson Scan3D's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Carlson Scan3D sells 1 in-app purchase, starting at $999.99 per year. Custom Observer App asks for nothing beyond the download.

Carlson Scan3D ships an update every 10 days, Custom Observer App every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Carlson Scan3D | Custom Observer App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/carlson-scan3d/id6462191530/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 146 MB | 151 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Carlson Software, Inc](https://appshunter.io/developer/1652080985) | [Aleut Community of St. Paul Island Tribal Government](https://appshunter.io/developer/1329178887) |

## What reviewers say

### Carlson Scan3D

[App page](https://appshunter.io/ios/app/carlson-scan3d/id6462191530)

Transform your iPhone or iPad into a powerful 3D laser scanner with LiDAR. This app processes data locally for enhanced accuracy and security, ideal for professionals in various industries needing precise 3D capture.

**Highlights:** High-powered 3D scanning tool, Precise color 3D point clouds, Local data optimization, Enhanced accuracy and security, Supports LiDAR-equipped iOS devices

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $999.99 | per year |


### Custom Observer App

[App page](https://appshunter.io/ios/app/custom-observer-app/id6736385664)

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

**In-app purchases:** none


## Frequently asked questions

### Is Carlson Scan3D free?

Carlson Scan3D is free to download, with in-app purchases available.

### Is Custom Observer App free?

Custom Observer App is free to download, with no in-app purchases.

### Do Carlson Scan3D or Custom Observer App have ads?

Neither Carlson Scan3D nor Custom Observer App shows ads.

### Which is updated more often, Carlson Scan3D or Custom Observer App?

Carlson Scan3D ships an update every 10 days, and Custom Observer App every 3 weeks. Most recently, Carlson Scan3D was updated on October 30, 2026 and Custom Observer App on October 30, 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.*