# Core Surgical Curriculum SCS vs St.Gall Algorithm

The clearest difference is iOS requirement: St.Gall Algorithm at 13.0 against Core Surgical Curriculum SCS's 16.0. On price, update cadence, 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.

Core Surgical Curriculum SCS ships an update every 6 weeks, St.Gall Algorithm every 3 weeks. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Core Surgical Curriculum SCS | St.Gall Algorithm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 138 MB | 26 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [MaxBrain AG](https://appshunter.io/developer/1450631824) | [HOCH Health Ostschweiz](https://appshunter.io/developer/1378566484) |

## What reviewers say

### Core Surgical Curriculum SCS

[App page](https://appshunter.io/ios/app/core-surgical-curriculum-scs/id1544863291)

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

**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 Core Surgical Curriculum SCS free?

Core Surgical Curriculum SCS 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.

### Do Core Surgical Curriculum SCS or St.Gall Algorithm have ads?

Neither Core Surgical Curriculum SCS nor St.Gall Algorithm shows ads.

### Which is updated more often, Core Surgical Curriculum SCS or St.Gall Algorithm?

Core Surgical Curriculum SCS ships an update every 6 weeks, and St.Gall Algorithm every 3 weeks. Most recently, Core Surgical Curriculum SCS was updated on September 30, 2026 and St.Gall Algorithm on October 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.*