# Napping vs zZZ

The clearest difference is update cadence: zZZ at every 2 days against Napping's every 31 months. 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.

Napping ships an update every 31 months, zZZ every 2 days. The most recent releases landed on December 24, 2025 and June 5, 2026 respectively.

## The numbers

| Metric | Napping | zZZ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 3 MB | 41 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Hangzhou HeiChe Technology Co., Ltd](https://appshunter.io/developer/1421830285) | [子龙 郭](https://appshunter.io/developer/1499776496) |

## What reviewers say

### Napping

[App page](https://appshunter.io/ios/app/napping/id1658785488)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Napping free?

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

### Is zZZ free?

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

### Do Napping or zZZ have ads?

Neither Napping nor zZZ shows ads.

### Which is updated more often, Napping or zZZ?

Napping ships an update every 31 months, and zZZ every 2 days. Most recently, Napping was updated on December 24, 2025 and zZZ on June 5, 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.*