# MASS3D vs Össur Logic

The clearest difference is rating: MASS3D at 5.0 against Össur Logic's 2.4. Össur Logic's advantage is update cadence (monthly vs every 2 months) and ratings volume (25 vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.

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

MASS3D holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: Össur Logic has 25 ratings behind it against 5, so its average is the more settled of the two.

MASS3D ships an update every 2 months, Össur Logic monthly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | MASS3D | Össur Logic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/mass3d/id972209124/reviews)** | [2.4 (25 ratings)](https://appshunter.io/ios/app/ossur-logic/id1062570593/reviews) |
| Number of ratings | 5 | **25** |
| Positive reviews | — | 17.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 56 MB | 27 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Sole Supports](https://appshunter.io/developer/902541934) | [Ossur Americas](https://appshunter.io/developer/586291549) |

## What reviewers say

### MASS3D

[App page](https://appshunter.io/ios/app/mass3d/id972209124)

This application enables the digital scanning of foot casts for the purpose of placing orthotic orders. It requires specific hardware and an account with the service provider to function. A video tutorial is available for guidance.

**Highlights:** 3D foot casting, Digital scanning, Orthotic order placement, Requires specific hardware, Sole Supports account integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Össur Logic

[App page](https://appshunter.io/ios/app/ossur-logic/id1062570593)

This app provides prosthetists with intuitive tools for setting up bionic prostheses. Users can monitor battery levels, track steps, and access configurations and instructions for use.

**Highlights:** Prosthesis setup for prosthetists, Battery level monitoring, Step count tracking, User configuration access, Latest instructions for use

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MASS3D free?

MASS3D is free to download, with no in-app purchases.

### Is Össur Logic free?

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

### Which has better reviews, MASS3D or Össur Logic?

MASS3D is rated higher. MASS3D averages 5.0 out of 5 from 5 ratings, while Össur Logic averages 2.4 from 25 ratings.

### Do MASS3D or Össur Logic have ads?

Neither MASS3D nor Össur Logic shows ads.

### Which is updated more often, MASS3D or Össur Logic?

MASS3D ships an update every 2 months, and Össur Logic monthly. Most recently, MASS3D was updated on November 1, 2026 and Össur Logic on November 6, 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.*