# Sleep Optimizer vs Meters | Rowing Log

The clearest difference is iOS requirement: Sleep Optimizer at 13.0 against Meters | Rowing Log's 26.1. 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 | Sleep Optimizer | Meters | Rowing Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 21 MB | 8 MB |
| Requires iOS | **13.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Livanda - Internetkliniken AB](https://appshunter.io/developer/1607972909) | [Jon Galante](https://appshunter.io/developer/1808070456) |

## What reviewers say

### Sleep Optimizer

[App page](https://appshunter.io/ios/app/sleep-optimizer/id1607972907)

**Features:** macOS Compatibility

**In-app purchases:** none


### Meters | Rowing Log

[App page](https://appshunter.io/ios/app/meters-rowing-log/id6757317631)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Optimizer free?

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

### Is Meters | Rowing Log free?

Meters | Rowing Log is free to download, with no in-app purchases.

### Do Sleep Optimizer or Meters | Rowing Log have ads?

Neither Sleep Optimizer nor Meters | Rowing Log 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.*