# Jungfrau vs Ossify

The clearest difference is in-app purchases: Ossify at none against Jungfrau's 2. Ossify also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Jungfrau sells 2 in-app purchases, starting at $3.99 per year. Ossify asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Jungfrau | Ossify |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 142 MB | 50 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Datasport](https://appshunter.io/developer/380886639) | [PIOTR PESTKA](https://appshunter.io/developer/1840009215) |

## What reviewers say

### Jungfrau

[App page](https://appshunter.io/ios/app/jungfrau-marathon/id6459922606)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tracx+ Unlimited | $3.99 | per year |
| Tracx+ Single Event | $3.99 | one-time |


### Ossify

[App page](https://appshunter.io/ios/app/ossify/id6752580973)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jungfrau free?

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

### Is Ossify free?

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

### Do Jungfrau or Ossify have ads?

Neither Jungfrau nor Ossify shows ads.

### Which is updated more often, Jungfrau or Ossify?

Jungfrau ships an update every 3 weeks, and Ossify every 3 weeks. Most recently, Jungfrau was updated on October 30, 2026 and Ossify on October 30, 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.*