# Structures Inspector vs SiamGPT

The clearest difference is update cadence: SiamGPT at fortnightly against Structures Inspector's every 5 months. SiamGPT also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, 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.

Structures Inspector ships an update every 5 months, SiamGPT fortnightly. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Structures Inspector | SiamGPT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 194 MB | 105 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trimble Inc.](https://appshunter.io/developer/322561665) | [SIAM AI CORPORATION COMPANY LIMITED](https://appshunter.io/developer/1777228804) |

## What reviewers say

### Structures Inspector

[App page](https://appshunter.io/ios/app/structures-inspector/id1532318954)

**In-app purchases:** none


### SiamGPT

[App page](https://appshunter.io/ios/app/siamgpt/id6738045774)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Structures Inspector free?

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

### Is SiamGPT free?

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

### Do Structures Inspector or SiamGPT have ads?

Neither Structures Inspector nor SiamGPT shows ads.

### Which is updated more often, Structures Inspector or SiamGPT?

Structures Inspector ships an update every 5 months, and SiamGPT fortnightly. Most recently, Structures Inspector was updated on September 13, 2026 and SiamGPT on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*