# Orthopedia vs St.Gall Algorithm

The clearest difference is device support: St.Gall Algorithm at 3 against Orthopedia's —. On price, 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.

## The numbers

| Metric | Orthopedia | St.Gall Algorithm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 weeks |
| Size | 61 MB | 26 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [SHO Me Digital Ltd](https://appshunter.io/developer/1537565630) | [HOCH Health Ostschweiz](https://appshunter.io/developer/1378566484) |

## What reviewers say

### Orthopedia

[App page](https://appshunter.io/ios/app/orthopedia/id6443335911)

**In-app purchases:** none


### St.Gall Algorithm

[App page](https://appshunter.io/ios/app/stgall-algorithm/id6766456299)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Orthopedia free?

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

### Is St.Gall Algorithm free?

St.Gall Algorithm is free to download, with no in-app purchases.

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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.*