# ANATOMY 3D Pro vs Underfoot

The clearest difference is price: Underfoot at Free against ANATOMY 3D Pro's $2.99. Underfoot also leads on update cadence (every 2 months vs every 12 months) and iOS requirement (17.0 vs 26.6). ANATOMY 3D Pro's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Underfoot is free to download; ANATOMY 3D Pro costs $2.99 up front. Underfoot sells 2 in-app purchases, starting at $2.99 per month. ANATOMY 3D Pro asks for nothing beyond the download.

ANATOMY 3D Pro ships an update every 12 months, Underfoot every 2 months. The most recent releases landed on October 30, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | ANATOMY 3D Pro | Underfoot |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Size | 31 MB | 102 MB |
| Requires iOS | 26.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DigiGalaxy](https://appshunter.io/developer/1470420175) | [Jason Brannon](https://appshunter.io/developer/1868090060) |

## What reviewers say

### ANATOMY 3D Pro

[App page](https://appshunter.io/ios/app/anatomy-3d-pro/id1470611408)

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

**In-app purchases:** none


### Underfoot

[App page](https://appshunter.io/ios/app/underfoot-bug-field-guide/id6786962032)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Underfoot Pro | $2.99 | per month |
| Underfoot Pro Annual | $24.99 | per year |


## Frequently asked questions

### Is ANATOMY 3D Pro free?

ANATOMY 3D Pro costs $2.99, with no in-app purchases.

### Is Underfoot free?

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

### Do ANATOMY 3D Pro or Underfoot have ads?

Neither ANATOMY 3D Pro nor Underfoot shows ads.

### Which is updated more often, ANATOMY 3D Pro or Underfoot?

ANATOMY 3D Pro ships an update every 12 months, and Underfoot every 2 months. Most recently, ANATOMY 3D Pro was updated on October 30, 2026 and Underfoot on October 23, 2026.

---

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