# Structure Sensor Calibrator

> Calibrates Structure Sensor depth data with iOS device camera for 3D scanning. (iPhone/iPad app by XRPro, LLC.)

- Source: https://appshunter.io/ios/app/structure-sensor-calibrator/id914275485 (this page in markdown: same URL + `.md`)
- Developer: [XRPro, LLC](https://appshunter.io/developer/1642756687)
- Category: Utilities
- Price: Free
- Rating: 3.00/5 from 4 App Store ratings · 63 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 39 MB
- Languages: American English
- Released: 2014-09-17
- Data updated: 2026-08-20
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/structure-sensor-calibrator/id914275485/reviews.md

## What is Structure Sensor Calibrator?

NOTE: This application is designed for the Structure Sensor accessory.  Learn more at http://structure.io

Unlock your Structure Sensor's full potential with Calibrator!

Calibrator precisely aligns 3D depth from your Structure Sensor accessory to your iOS device's camera. This enables better full-color 3D scanning, and optimal performance of the Structure Sensor in all Occipital applications.

A simple user interface guides you through the calibration process in just a few minutes. Calibration results are saved to the accessory and are immediately accessible in other apps.

This application requires the Structure Sensor accessory.

Device Compatibility: 
==========
iPad:
Calibrator supports all recent iPad models with Lightning connector. Requires corresponding attachment Bracket, which can be found at: [https://store.structure.io/store]

iPhone / Custom Cases:
Calibrator can be used with custom 3D printed iPhone cases. All iPhones with Lightning connector are supported. iPhone 12 or newer is recommended. [https://support.structure.io/article/162-can-i-use-the-structure-sensor-with-an-iphone]

## Key features

- Aligns 3D depth data
- Enhances full-color 3D scanning
- Optimizes sensor performance
- Simple user interface
- Quick calibration process
- Saves results to accessory

## Recent user reviews (10 of 63)

All indexed reviews: https://appshunter.io/ios/app/structure-sensor-calibrator/id914275485/reviews.md

### 1/5 — Doesn’t work with structure 3

*2024-09-27*

None of the apps do; this new sensor is useless.

### 1/5 — Calibrator tool

*2023-11-18, version 4.4.2*

I don’t know but I recently changed my iPhone and calibration is a headache asking me for x y z. I used to use with my iPhone without bracket.
I didn’t have this option before it was quite simple attach scanner choose your object in cube ready to go.
Now it’s really getting complicated.

### 1/5 — Trash app

*2023-10-22, version 4.4.2*

Either the hardware doesn’t work or the app crashes. Good luck getting in touch with tech support. Really underwhelming

### 2/5 — User friendliness should be improve

*2023-05-26, version 4.3.1*

Never in the calibration process do we get asked to perform refinement which is probably the most decisive step in calibrating your structure sensor. 

You should definitely change that and add it to the complete process of calibration. 

Once you do it the scanner works properly so the stars lost are mostly due to the time I lost finding the issue with my set up.

### 1/5 — Rubbish

*2023-04-14, version 4.3.1*

Just plain doesn’t work - locks up on the detecting side vision lens, move camera to left and right…. And that’s it, stuck, nothing, nada.

### 3/5 — 3D Systems製品には使えません。

*2022-05-17, version 4.2.0*

よく見たら私の持っているのは3D Systems のiSenseでした。
Structure Sensorと形状は同じものですが内部的には違うみたいです。
すでに3D Systemsは撤退しています。
ファームウェアのアップデートも終了しているためver.1.0.2からアップデートできません。今後対応される事は無いと思われます。
テクスチャがズレてしまう事を除けば使えない事もないのでキャリブレーションは諦めます。
でももし対応してくれたらありがたいですね。

### 1/5 — Crashes

*2022-04-20, version 4.1.0*

When trying to calibrate crashes

iPhone XS Max

### 1/5 — No funciona

*2022-01-14, version 4.1.0*

Al querer calibrar el scanner se cierra aplicación. Y cuando logro dejarla abierta, me dice que ocupa más luz solar, estando yo en la calle con el sol de frente

### 1/5 — The app keeps reporting insufficient sunlight and doesn’t allow indoor mode

*2021-10-27*

The app keeps reporting insufficient sunlight even when I stood under the sun and doesn’t allow indoor mode. I am using iPhone 6 Plus on iOS 12.5.5

### 1/5 — Ошибка о недостаточности освещения

*2021-09-30*

Все перепробовал- выдаёт ошибку о недостаточности освещения. Разберитесь пожалуйста!

## Frequently asked questions about Structure Sensor Calibrator

### What does the Structure Sensor Calibrator app do?

This app precisely aligns the 3D depth data from your Structure Sensor accessory with your iOS device's camera. This alignment is crucial for achieving better full-color 3D scanning and ensuring optimal performance of the Structure Sensor in various Occipital applications.

### What are the key features of the Structure Sensor Calibrator?

The app features precise alignment of 3D depth data, enhanced full-color 3D scanning capabilities, and optimized performance for the Structure Sensor. It also boasts a simple user interface for a quick calibration process that saves results directly to the accessory.

### Is the Structure Sensor Calibrator app free to use?

Yes, the application is free to use. It does not have any in-app purchases or advertisements, making it a completely free utility for Structure Sensor owners.

### What devices are compatible with the Structure Sensor Calibrator?

The app supports all recent iPad models with a Lightning connector, provided they have the corresponding attachment bracket. It can also be used with custom 3D printed iPhone cases for all iPhones with a Lightning connector, with iPhone 12 or newer recommended.

### What is the main use case for this app?

The primary use case is to calibrate the Structure Sensor accessory for improved 3D scanning accuracy and performance on iOS devices. This is essential for users who want to leverage the full potential of their Structure Sensor for applications requiring precise depth information and full-color 3D models.

## Version history (last 5 releases)

### 4.10.0 — 2026-08-19

- Updated to SDK 3.9.0
- Improved Connectivity

### 4.9.1 — 2026-07-07

- Support for iPad Air M4 11-in and 13-in

### 4.9.0 — 2026-07-02

- Updated to SDK 3.8
- Added support for the iPad Mini M4 (2026), both 11 and 13 inch versions

### 4.8.0 — 2026-03-24

- Updated to SDK 3.7
- Improved Connectivity

### 4.7.0 — 2025-12-27

- Added support for the following iPad models:
  - iPad Pro 11 inch (M5)
  - iPad Pro 13 inch (M5)
- Updated to SDK 3.6
- In some cases, the ST01 sensor requires reconnection to read its calibration. This issue only affects the legacy ST01 sensor

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## More apps by XRPro, LLC

- [Structure](https://appshunter.io/ios/app/structure/id570447097)
- [Scanner - Structure SDK](https://appshunter.io/ios/app/scanner-structure-sdk/id891169722)
- [Room Capture - Structure SDK](https://appshunter.io/ios/app/room-capture-structure-sdk/id916501905)
- [Structure Uplink](https://appshunter.io/ios/app/structure-uplink/id1490018610)
- [Calibrator Pro](https://appshunter.io/ios/app/calibrator-pro/id1642756685)

All apps by XRPro, LLC: https://appshunter.io/developer/1642756687

## Related topics

[trax image recognition](https://appshunter.io/ios/topics/trax-image-recognition)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*