# Global Knee Summit vs CupCalc

The clearest difference is in-app purchases: Global Knee Summit at none against CupCalc's 2. Global Knee Summit also leads on update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CupCalc sells 2 in-app purchases, starting at $12.99 per year. Global Knee Summit asks for nothing beyond the download.

Global Knee Summit ships an update weekly, CupCalc fortnightly. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Global Knee Summit | CupCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 36 MB | 42 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Stellwagen](https://appshunter.io/developer/1097454298) | [Zekko LLC](https://appshunter.io/developer/1889700014) |

## What reviewers say

### Global Knee Summit

[App page](https://appshunter.io/ios/app/global-knee-summit/id6755230438)

**Features:** macOS Compatibility

**In-app purchases:** none


### CupCalc

[App page](https://appshunter.io/ios/app/cupcalc/id6761444976)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CupCalc Express | $12.99 | per year |
| CupCalc Pro | $19.99 | per year |


## Frequently asked questions

### Is Global Knee Summit free?

Global Knee Summit is free to download, with no in-app purchases.

### Is CupCalc free?

CupCalc is free to download, with in-app purchases available.

### Do Global Knee Summit or CupCalc have ads?

Neither Global Knee Summit nor CupCalc shows ads.

### Which is updated more often, Global Knee Summit or CupCalc?

Global Knee Summit ships an update weekly, and CupCalc fortnightly. Most recently, Global Knee Summit was updated on September 19, 2026 and CupCalc on September 20, 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.*