# U4 vs Eventstage Krems

The clearest difference is iOS requirement: Eventstage Krems at 12.0 against U4's 15.1. 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.

U4 ships an update every 3 months, Eventstage Krems every 4 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | U4 | Eventstage Krems |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Ad-supported | — |
| Size | 45 MB | 146 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [U4-Center Diskothek Betriebs GmbH](https://appshunter.io/developer/1470946325) | [Aigner Gastro GmbH](https://appshunter.io/developer/1779033894) |

## What reviewers say

### U4

[App page](https://appshunter.io/ios/app/u4/id1470946326)

This loyalty program app allows users to earn points through various activities like scanning cards, inviting friends, or social media engagement. Redeem these points for rewards, exclusive offers, and participate in contests. Stay updated on events and news.

**Highlights:** Earn points through activities, Redeem points for rewards, Access exclusive offers, Participate in contests, Stay updated on events and news, Simple login with Facebook or email

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

**In-app purchases:** none


### Eventstage Krems

[App page](https://appshunter.io/ios/app/eventstage-krems/id6738040635)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is U4 free?

U4 is free to download, with no in-app purchases.

### Is Eventstage Krems free?

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

### Do U4 or Eventstage Krems have ads?

Neither U4 nor Eventstage Krems shows ads.

### Which is updated more often, U4 or Eventstage Krems?

U4 ships an update every 3 months, and Eventstage Krems every 4 months. Most recently, U4 was updated on November 3, 2026 and Eventstage Krems 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.*