# Ermetix Catalog vs Maxem

The clearest difference is update cadence: Maxem at fortnightly against Ermetix Catalog's every 5 months. 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.

Ermetix Catalog ships an update every 5 months, Maxem fortnightly. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Ermetix Catalog | Maxem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 17 MB | 15 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ERMETIX SRL](https://appshunter.io/developer/1035300725) | [Maxem Energy Solutions B.V](https://appshunter.io/developer/1240232203) |

## What reviewers say

### Ermetix Catalog

[App page](https://appshunter.io/ios/app/ermetix-catalog/id1151133364)

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

**In-app purchases:** none


### Maxem

[App page](https://appshunter.io/ios/app/maxem/id1265072150)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ermetix Catalog free?

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

### Is Maxem free?

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

### Do Ermetix Catalog or Maxem have ads?

Neither Ermetix Catalog nor Maxem shows ads.

### Which is updated more often, Ermetix Catalog or Maxem?

Ermetix Catalog ships an update every 5 months, and Maxem fortnightly. Most recently, Ermetix Catalog was updated on October 19, 2026 and Maxem on October 17, 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.*