# Structure vs LimbLogic

The clearest difference is rating: Structure at 3.1 against LimbLogic's 2.4. Structure also leads on review sentiment (50% vs 13%) and update cadence (every 2 months vs every 8 months). LimbLogic's advantage is iOS requirement (8.0 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Structure holds the better App Store score, 3.1 against 2.4. Both are backed by a comparable volume of ratings — 15 and 9 respectively. Written reviews point the same way: 50% of Structure's written reviews are positive against 13% of LimbLogic's.

Structure ships an update every 2 months, LimbLogic every 8 months. The most recent releases landed on October 14, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Structure | LimbLogic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (15 ratings)](https://appshunter.io/ios/app/structure/id570447097/reviews)** | [2.4 (9 ratings)](https://appshunter.io/ios/app/limblogic/id1113088433/reviews) |
| Number of ratings | **15** | 9 |
| Positive reviews | **50.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 19 MB | 4 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [XRPro, LLC](https://appshunter.io/developer/1642756687) | [Willow Wood](https://appshunter.io/developer/1029162927) |

## 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


### LimbLogic

[App page](https://appshunter.io/ios/app/limblogic/id1113088433)

This application allows users of a specific elevated vacuum system to wirelessly control and monitor their device. Users can adjust vacuum levels, change modes based on activity, and check system status. It provides convenient access to key settings for optimal prosthesis management.

**Highlights:** Adjust vacuum level, Change mode based on activity, Control system volume, Check battery level, View vacuum settings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Structure free?

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

### Is LimbLogic free?

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

### Which has better reviews, Structure or LimbLogic?

Structure is rated higher. Structure averages 3.1 out of 5 from 15 ratings, while LimbLogic averages 2.4 from 9 ratings.

### Do Structure or LimbLogic have ads?

Neither Structure nor LimbLogic shows ads.

### Which is updated more often, Structure or LimbLogic?

Structure ships an update every 2 months, and LimbLogic every 8 months. Most recently, Structure was updated on October 14, 2026 and LimbLogic on September 27, 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.*