# Structure vs Klaxon App

The clearest difference is rating: Klaxon App at 4.0 against Structure's 3.1. Structure's advantage is ratings volume (15 vs 3) and iOS requirement (13.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

Klaxon App holds the better App Store score, 4.0 against 3.1. That said, the two scores are not equally well evidenced: Structure has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 20, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Structure | Klaxon App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (15 ratings)](https://appshunter.io/ios/app/structure/id570447097/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/klaxon-app/id6737837111/reviews)** |
| Number of ratings | **15** | 3 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 19 MB | 29 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XRPro, LLC](https://appshunter.io/developer/1642756687) | [Klaxon Mobility GmbH](https://appshunter.io/developer/1778221244) |

## What reviewers say

### Structure

[App page](https://appshunter.io/ios/app/structure/id570447097)

This app is a companion for a 3D scanning accessory, enabling iOS devices to capture the world in three dimensions. It allows users to view live 3D measurements, overlay depth and color data, and stream 3D data to a computer. The app also facilitates firmware updates and battery level checks for the accessory.

**Highlights:** Live 3D distance measurements, Overlay 3D depth and color, Live 3D stream uplink via WiFi, Structure Sensor firmware updates, Structure Sensor battery level check

**In-app purchases:** none


### Klaxon App

[App page](https://appshunter.io/ios/app/klaxon-app/id6737837111)

Enhance your experience with Klaxon products by connecting to your device via Bluetooth. Access helpful manuals and tutorials for setup and mounting, especially for wheelchairs.

**Highlights:** Bluetooth device connection, Product manuals, Mounting tutorials, Wheelchair integration guides, Enhanced user experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Structure free?

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

### Is Klaxon App free?

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

### Which has better reviews, Structure or Klaxon App?

Klaxon App is rated higher. Structure averages 3.1 out of 5 from 15 ratings, while Klaxon App averages 4.0 from 3 ratings.

### Do Structure or Klaxon App have ads?

Neither Structure nor Klaxon App shows ads.

### Which is updated more often, Structure or Klaxon App?

Structure ships an update every 2 months, and Klaxon App every 2 months. Most recently, Structure was updated on August 20, 2026 and Klaxon App on September 14, 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.*