# Ermetix Catalog vs Algorithm Master

The clearest difference is iOS requirement: Ermetix Catalog at 12.0 against Algorithm Master's 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.

## The numbers

| Metric | Ermetix Catalog | Algorithm Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 17 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ERMETIX SRL](https://appshunter.io/developer/1035300725) | [辉 向](https://appshunter.io/developer/1316412704) |

## 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


### Algorithm Master

[App page](https://appshunter.io/ios/app/algorithm-master-visual/id6743109308)

**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 Algorithm Master free?

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

### Do Ermetix Catalog or Algorithm Master have ads?

Neither Ermetix Catalog nor Algorithm Master shows ads.

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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.*