# Alpha DESIGN® vs Custom4U Ottobock

The clearest difference is update cadence: Custom4U Ottobock at monthly against Alpha DESIGN®'s every 4 months. Custom4U Ottobock also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Alpha DESIGN® ships an update every 4 months, Custom4U Ottobock monthly. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Alpha DESIGN® | Custom4U Ottobock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/custom4u-ottobock/id1451210370/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free |
| Size | 136 MB | 136 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Willow Wood](https://appshunter.io/developer/1029162927) | [TechMed 3D](https://appshunter.io/developer/964196047) |

## What reviewers say

### Alpha DESIGN®

[App page](https://appshunter.io/ios/app/alpha-design/id1270811107)

**Features:** macOS Compatibility

**In-app purchases:** none


### Custom4U Ottobock

[App page](https://appshunter.io/ios/app/custom4u-ottobock/id1451210370)

This medical app facilitates 3D scanning of lower limbs for custom-made prosthetic liners. It utilizes the Structure SDK/TrueDepth camera on compatible iPads for quick and accurate scans. The resulting data is sent directly to Ottobock for efficient fabrication.

**Highlights:** 3D scanning for lower limb prosthetics, Utilizes Structure SDK/TrueDepth camera, Portable and easy to use, Fast custom liner fabrication, Below-knee (BK) limb scanning

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

**In-app purchases:** none


## Frequently asked questions

### Is Alpha DESIGN® free?

Alpha DESIGN® is free to download, with no in-app purchases.

### Is Custom4U Ottobock free?

Custom4U Ottobock is free to download, with no in-app purchases.

### Do Alpha DESIGN® or Custom4U Ottobock have ads?

Neither Alpha DESIGN® nor Custom4U Ottobock shows ads.

### Which is updated more often, Alpha DESIGN® or Custom4U Ottobock?

Alpha DESIGN® ships an update every 4 months, and Custom4U Ottobock monthly. Most recently, Alpha DESIGN® was updated on September 17, 2026 and Custom4U Ottobock on September 23, 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.*