# Jizerská 50 vs Jizerun

The clearest difference is update cadence: Jizerská 50 at every 3 weeks against Jizerun's every 12 months. Jizerská 50 also leads on device support (3 vs 1). On price, ads, 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.

Jizerská 50 ships an update every 3 weeks, Jizerun every 12 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Jizerská 50 | Jizerun |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 12 months |
| Monetization | Free | — |
| Size | 46 MB | 55 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CGI IT Czech Republic s.r.o.](https://appshunter.io/developer/925257258) | [Nanooq IT s.r.o.](https://appshunter.io/developer/1130938386) |

## What reviewers say

### Jizerská 50

[App page](https://appshunter.io/ios/app/jizerska-50/id1545611320)

Stay updated on the largest Czech cross-country ski race series with this official app. Access event schedules, competitor profiles, results, weather, course maps, and social media news. It's your comprehensive guide for participants and spectators alike.

**Highlights:** Event program and side events, Competitor profiles, Race results, Transportation information, Weather forecasts, Course maps and profiles, Social media news feed

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

**In-app purchases:** none


### Jizerun

[App page](https://appshunter.io/ios/app/jizerun/id6737131105)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jizerská 50 free?

Jizerská 50 is free to download, with no in-app purchases.

### Is Jizerun free?

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

### Do Jizerská 50 or Jizerun have ads?

Neither Jizerská 50 nor Jizerun shows ads.

### Which is updated more often, Jizerská 50 or Jizerun?

Jizerská 50 ships an update every 3 weeks, and Jizerun every 12 months. Most recently, Jizerská 50 was updated on October 24, 2026 and Jizerun 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.*