# SF Wüsting vs FitBuddy by Katrin

The clearest difference is in-app purchases: SF Wüsting at none against FitBuddy by Katrin's 2. FitBuddy by Katrin's advantage is update cadence (every 4 days vs every 15 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. FitBuddy by Katrin sells 2 one-off in-app purchases. SF Wüsting asks for nothing beyond the download.

SF Wüsting ships an update every 15 months, FitBuddy by Katrin every 4 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SF Wüsting | FitBuddy by Katrin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 days** |
| Size | 13 MB | 35 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sportfreunde Wusting-Altmoorhausen](https://appshunter.io/developer/1539000596) | [Katharine Maria Leichsenring](https://appshunter.io/developer/6774518435) |

## What reviewers say

### SF Wüsting

[App page](https://appshunter.io/ios/app/sf-wusting/id1539000593)

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

**In-app purchases:** none


### FitBuddy by Katrin

[App page](https://appshunter.io/ios/app/fitbuddy-by-katrin/id6774518433)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zuckerfrei Challenge | $22.99 | one-time |
| Gym to go - Workouts | $44.99 | one-time |


## Frequently asked questions

### Is SF Wüsting free?

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

### Is FitBuddy by Katrin free?

FitBuddy by Katrin is free to download, with in-app purchases available.

### Do SF Wüsting or FitBuddy by Katrin have ads?

Neither SF Wüsting nor FitBuddy by Katrin shows ads.

### Which is updated more often, SF Wüsting or FitBuddy by Katrin?

SF Wüsting ships an update every 15 months, and FitBuddy by Katrin every 4 days. Most recently, SF Wüsting was updated on November 3, 2026 and FitBuddy by Katrin on November 5, 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.*