# Mainz vs HAMBURG OPEN

The clearest difference is update cadence: HAMBURG OPEN at every 3 weeks against Mainz's every 4 months. Mainz's advantage is iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mainz ships an update every 4 months, HAMBURG OPEN every 3 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Mainz | HAMBURG OPEN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 41 MB | 79 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Claude Simon Baumann](https://appshunter.io/developer/1057526237) | [Hamburg Messe und Congress GmbH](https://appshunter.io/developer/1540740945) |

## What reviewers say

### Mainz

[App page](https://appshunter.io/ios/app/mainz-ebersheim/id1205500028)

**Features:** macOS Compatibility

**In-app purchases:** none


### HAMBURG OPEN

[App page](https://appshunter.io/ios/app/hamburg-open/id6738500512)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mainz free?

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

### Is HAMBURG OPEN free?

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

### Do Mainz or HAMBURG OPEN have ads?

Neither Mainz nor HAMBURG OPEN shows ads.

### Which is updated more often, Mainz or HAMBURG OPEN?

Mainz ships an update every 4 months, and HAMBURG OPEN every 3 weeks. Most recently, Mainz was updated on October 7, 2026 and HAMBURG OPEN on October 14, 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.*