# 4x4 Treadmill vs RunSharp

The clearest difference is iOS requirement: 4x4 Treadmill at 16.6 against RunSharp's 18.6. On price and in-app purchases there is nothing between them.

Both are free to download. 4x4 Treadmill sells 1 one-off in-app purchase and RunSharp sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 4x4 Treadmill | RunSharp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 4 days |
| Size | 8 MB | 4 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Proglab AS](https://appshunter.io/developer/1144688859) | [PragmaTec](https://appshunter.io/developer/1005092574) |

## What reviewers say

### 4x4 Treadmill

[App page](https://appshunter.io/ios/app/4x4-treadmill/id6758803671)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4x4 Treadmill Premium | $4.99 | one-time |


### RunSharp

[App page](https://appshunter.io/ios/app/runsharp-ai-running-coach/id6762289300)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RunSharp Pro | $9.99 | one-time |


## Frequently asked questions

### Is 4x4 Treadmill free?

4x4 Treadmill is free to download, with in-app purchases available.

### Is RunSharp free?

RunSharp is free to download, with in-app purchases available.

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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.*