# STRUCINSPECT vs MarbleArch

The clearest difference is update cadence: STRUCINSPECT at every 2 weeks against MarbleArch's every 6 months. MarbleArch's advantage is iOS requirement (15.0 vs 18.0). 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.

STRUCINSPECT ships an update every 2 weeks, MarbleArch every 6 months. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | STRUCINSPECT | MarbleArch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Size | 175 MB | 47 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Palfinger Structural Inspection GmbH](https://appshunter.io/developer/1654478776) | [Aatish Bagal](https://appshunter.io/developer/1869824513) |

## What reviewers say

### STRUCINSPECT

[App page](https://appshunter.io/ios/app/strucinspect/id6444405794)

**In-app purchases:** none


### MarbleArch

[App page](https://appshunter.io/ios/app/marblearch/id6757943152)

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

**In-app purchases:** none


## Frequently asked questions

### Is STRUCINSPECT free?

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

### Is MarbleArch free?

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

### Do STRUCINSPECT or MarbleArch have ads?

Neither STRUCINSPECT nor MarbleArch shows ads.

### Which is updated more often, STRUCINSPECT or MarbleArch?

STRUCINSPECT ships an update every 2 weeks, and MarbleArch every 6 months. Most recently, STRUCINSPECT was updated on November 7, 2026 and MarbleArch on November 9, 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.*