# SLS vs Max HR

The clearest difference is iOS requirement: SLS at 13.0 against Max HR's 15.6. 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 | SLS | Max HR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 37 MB | 67 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AL MADINAH AL MUNAWWARAH DIGITAL SOLUTION AND INFORMATION SYSTEM](https://appshunter.io/developer/1600144702) | [Mahmoud Al-BAHERI](https://appshunter.io/developer/1477096761) |

## What reviewers say

### SLS

[App page](https://appshunter.io/ios/app/sls/id6753951625)

**Features:** macOS Compatibility

**In-app purchases:** none


### Max HR

[App page](https://appshunter.io/ios/app/max-hr/id6757756911)

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

**In-app purchases:** none


## Frequently asked questions

### Is SLS free?

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

### Is Max HR free?

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

### Do SLS or Max HR have ads?

Neither SLS nor Max HR 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.*