# ETNA Sim vs Harding

The clearest difference is device support: ETNA Sim at 4 against Harding's —. ETNA Sim also leads on iOS requirement (10.0 vs 13.0). On price 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.

## The numbers

| Metric | ETNA Sim | Harding |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 44 MB | 29 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [ETNA Software Corp](https://appshunter.io/developer/527169064) | [Harding Academy](https://appshunter.io/developer/778543832) |

## What reviewers say

### ETNA Sim

[App page](https://appshunter.io/ios/app/etna-sim-uww/id1476274229)

**Features:** macOS Compatibility

**In-app purchases:** none


### Harding

[App page](https://appshunter.io/ios/app/harding/id6575346481)

**In-app purchases:** none


## Frequently asked questions

### Is ETNA Sim free?

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

### Is Harding free?

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

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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.*