# Eltrona Expert+ vs Grevenmacher

The clearest difference is update cadence: Grevenmacher at weekly against Eltrona Expert+'s every 15 months. Eltrona Expert+'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.

Eltrona Expert+ ships an update every 15 months, Grevenmacher weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Eltrona Expert+ | Grevenmacher |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Size | 17 MB | 76 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eltrona Interdiffusion S.A.](https://appshunter.io/developer/1010701620) | [Administration communale de la Ville de Grevenmacher](https://appshunter.io/developer/1624452763) |

## What reviewers say

### Eltrona Expert+

[App page](https://appshunter.io/ios/app/eltrona-expert-plus/id1614453090)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grevenmacher

[App page](https://appshunter.io/ios/app/grevenmacher/id1624452761)

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

**In-app purchases:** none


## Frequently asked questions

### Is Eltrona Expert+ free?

Eltrona Expert+ is free to download, with no in-app purchases.

### Is Grevenmacher free?

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

### Do Eltrona Expert+ or Grevenmacher have ads?

Neither Eltrona Expert+ nor Grevenmacher shows ads.

### Which is updated more often, Eltrona Expert+ or Grevenmacher?

Eltrona Expert+ ships an update every 15 months, and Grevenmacher weekly. Most recently, Eltrona Expert+ was updated on October 25, 2026 and Grevenmacher on October 25, 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.*