# zZZ vs SleepWiseHC

The clearest difference is in-app purchases: zZZ at none against SleepWiseHC's 2. SleepWiseHC's advantage is iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SleepWiseHC sells 2 one-off in-app purchases. zZZ asks for nothing beyond the download.

## The numbers

| Metric | zZZ | SleepWiseHC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Free | — |
| Size | 41 MB | 39 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [子龙 郭](https://appshunter.io/developer/1499776496) | [SleepWise Healthcare Sagl](https://appshunter.io/developer/1777441775) |

## What reviewers say

### zZZ

[App page](https://appshunter.io/ios/app/zzz-sleep-tracker/id6476821635)

This app analyzes your sleep patterns using data from your Apple Watch and Apple Health. It provides detailed sleep stage diagrams, trends, and insights to help you understand and improve your sleep quality. Features include tracking sleep history, heart rate, and respiratory rate.

**Highlights:** Automatic sleep detection with Apple Watch, Detailed sleep stage analysis (Awake, REM, Core, Deep), Sleep history tracking (Day, Week, Month, Custom), Monitoring of heart rate and respiratory rate during sleep, Sleep quality rating and improvement suggestions, Watch app support, Privacy-focused data storage

**Features:** macOS Compatibility

**In-app purchases:** none


### SleepWiseHC

[App page](https://appshunter.io/ios/app/sleepwisehc/id6737696586)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One SleepWise test | $4.99 | one-time |
| Three SleepWise tests | $12.99 | one-time |


## Frequently asked questions

### Is zZZ free?

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

### Is SleepWiseHC free?

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

### Do zZZ or SleepWiseHC have ads?

Neither zZZ nor SleepWiseHC 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.*