# Sleep Optimizer vs Claire

The clearest difference is iOS requirement: Sleep Optimizer at 13.0 against Claire's 15.0. On price, update cadence, ads 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.

Sleep Optimizer ships an update every 2 months, Claire every 6 weeks. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Sleep Optimizer | Claire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 21 MB | 42 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Livanda - Internetkliniken AB](https://appshunter.io/developer/1607972909) | [Klarafication Digital Therapeutics AB](https://appshunter.io/developer/1729969636) |

## What reviewers say

### Sleep Optimizer

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Claire

[App page](https://appshunter.io/ios/app/claire/id6479605481)

**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 Claire free?

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

### Do Sleep Optimizer or Claire have ads?

Neither Sleep Optimizer nor Claire shows ads.

### Which is updated more often, Sleep Optimizer or Claire?

Sleep Optimizer ships an update every 2 months, and Claire every 6 weeks. Most recently, Sleep Optimizer was updated on September 19, 2026 and Claire on September 9, 2026.

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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.*