# Subway3D vs Hutton App

The clearest difference is in-app purchases: Subway3D at none against Hutton App's 3. Hutton App's advantage is device support and iOS requirement (15.1 vs 18.0). On price there is nothing between them.

Both are free to download. Hutton App sells 3 in-app purchases, starting at $5.99 per month. Subway3D asks for nothing beyond the download.

## The numbers

| Metric | Subway3D | Hutton App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hutton-app/id6755796376/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 61 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [GeoKidz LLC](https://appshunter.io/developer/1856426044) |

## What reviewers say

### Subway3D

[App page](https://appshunter.io/ios/app/subway3d/id6446181722)

**In-app purchases:** none


### Hutton App

[App page](https://appshunter.io/ios/app/hutton-app/id6755796376)

Explore Earth's geologic wonders with this comprehensive field guide. Identify rocks and minerals using AI or manual methods, access professional geologic maps, and discover over 32,000 rockhounding sites. Document your expeditions with GPS-tagged notes and photos, and connect with a global community of geology enthusiasts.

**Highlights:** Professional geologic maps, Real-time data updates, AI rock and mineral identification, Manual identification mode, 32,000+ rockhounding sites, GPS-tagged trip documentation, Integrated geology dictionary

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hutton Premium Monthly | $5.99 | per month |
| Hutton Premium Six month | $29.99 | per 6 months |
| Hutton Yearly Monthly | $47.99 | per year |


## Frequently asked questions

### Is Subway3D free?

Subway3D is free to download, with no in-app purchases.

### Is Hutton App free?

Hutton App is free to download, with in-app purchases available.

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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.*