# Shoulder Innovations vs Primal's 3D Shoulder

The clearest difference is in-app purchases: Shoulder Innovations at none against Primal's 3D Shoulder's 1. Primal's 3D Shoulder's advantage is update cadence (every 5 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Primal's 3D Shoulder sells 1 one-off in-app purchase. Shoulder Innovations asks for nothing beyond the download.

Shoulder Innovations ships an update every 5 months, Primal's 3D Shoulder every 5 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Shoulder Innovations | Primal's 3D Shoulder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 17 MB | 131 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Genesis Innovation Group](https://appshunter.io/developer/1405709071) | [Pharma Intelligence UK Ltd](https://appshunter.io/developer/1678054030) |

## What reviewers say

### Shoulder Innovations

[App page](https://appshunter.io/ios/app/shoulder-innovations/id1547031979)

**Features:** macOS Compatibility

**In-app purchases:** none


### Primal's 3D Shoulder

[App page](https://appshunter.io/ios/app/primals-3d-shoulder/id1658793725)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Primal's 3D Shoulder | $39.99 | one-time |


## Frequently asked questions

### Is Shoulder Innovations free?

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

### Is Primal's 3D Shoulder free?

Primal's 3D Shoulder is free to download, with in-app purchases available.

### Do Shoulder Innovations or Primal's 3D Shoulder have ads?

Neither Shoulder Innovations nor Primal's 3D Shoulder shows ads.

### Which is updated more often, Shoulder Innovations or Primal's 3D Shoulder?

Shoulder Innovations ships an update every 5 months, and Primal's 3D Shoulder every 5 weeks. Most recently, Shoulder Innovations was updated on November 3, 2026 and Primal's 3D Shoulder 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.*