# BioStep vs Custom4U Ottobock

The clearest difference is rating: BioStep at 5.0 against Custom4U Ottobock's 1.0. BioStep also leads on update cadence (fortnightly vs monthly). Custom4U Ottobock's advantage is iOS requirement (15.0 vs 17.6). On price, ratings volume, 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.

BioStep holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

BioStep ships an update fortnightly, Custom4U Ottobock monthly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BioStep | Custom4U Ottobock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/biostep/id1132497528/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/custom4u-ottobock/id1451210370/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free | Free |
| Size | 74 MB | 136 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [BioStep Inc](https://appshunter.io/developer/1132497527) | [TechMed 3D](https://appshunter.io/developer/964196047) |

## What reviewers say

### BioStep

[App page](https://appshunter.io/ios/app/biostep/id1132497528)

This app allows medical professionals to easily submit custom orthotic orders with detailed descriptions and images. It enables users to scan patient feet directly within the application.

**Highlights:** Submit custom orthotic orders, Detailed product descriptions, Image uploads for customization, Patient foot scanning, Secure professional access

**Features:** Vision Pro support

**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 BioStep free?

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

### Is Custom4U Ottobock free?

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

### Which has better reviews, BioStep or Custom4U Ottobock?

BioStep is rated higher. BioStep averages 5.0 out of 5 from 2 ratings, while Custom4U Ottobock averages 1.0 from 1 ratings.

### Do BioStep or Custom4U Ottobock have ads?

Neither BioStep nor Custom4U Ottobock shows ads.

### Which is updated more often, BioStep or Custom4U Ottobock?

BioStep ships an update fortnightly, and Custom4U Ottobock monthly. Most recently, BioStep was updated on October 9, 2026 and Custom4U Ottobock on October 7, 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.*