# Douglas 3D Sizing vs Orthotica3D

The clearest difference is update cadence: Orthotica3D at every 3 weeks against Douglas 3D Sizing's every 2 months. Orthotica3D also leads on iOS requirement (12.2 vs 15.0). Douglas 3D Sizing's advantage is device support (3 vs 1). 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.

Douglas 3D Sizing ships an update every 2 months, Orthotica3D every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Douglas 3D Sizing | Orthotica3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/orthotica3d/id1595860533/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 126 MB | 195 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 4+ |
| Developer | [TechMed 3D](https://appshunter.io/developer/964196047) | [Taika3D Oy](https://appshunter.io/developer/1436462173) |

## What reviewers say

### Douglas 3D Sizing

[App page](https://appshunter.io/ios/app/douglas-3d-sizing/id1593445668)

**Features:** macOS Compatibility

**In-app purchases:** none


### Orthotica3D

[App page](https://appshunter.io/ios/app/orthotica3d/id1595860533)

This app transforms an iPad Pro or newer iPhone into a high-precision 3D scanner for lower extremity practitioners. It streamlines the process of creating custom foot orthotic prescriptions with an intuitive Rx builder and outcome tracking.

**Highlights:** 3D foot and lower extremity scanning, Intuitive Rx builder for prescriptions, Customizable pathology profiles and favorites, Quality and outcome metrics tracking, FaceID integration for secure access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Douglas 3D Sizing free?

Douglas 3D Sizing is free to download, with no in-app purchases.

### Is Orthotica3D free?

Orthotica3D is free to download, with no in-app purchases.

### Do Douglas 3D Sizing or Orthotica3D have ads?

Neither Douglas 3D Sizing nor Orthotica3D shows ads.

### Which is updated more often, Douglas 3D Sizing or Orthotica3D?

Douglas 3D Sizing ships an update every 2 months, and Orthotica3D every 3 weeks. Most recently, Douglas 3D Sizing was updated on November 3, 2026 and Orthotica3D on November 3, 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.*