# SleepTrack vs zZz

The clearest difference is rating: SleepTrack at 4.0 against zZz's 2.9. SleepTrack also leads on review sentiment (38% vs 0%) and in-app purchases (none vs 1). zZz's advantage is update cadence (every 4 days vs monthly). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. zZz sells 1 one-off in-app purchase. SleepTrack asks for nothing beyond the download.

SleepTrack holds the better App Store score, 4.0 against 2.9. Both are backed by a comparable volume of ratings — 16 and 11 respectively. Written reviews point the same way: 38% of SleepTrack's written reviews are positive against 0% of zZz's.

SleepTrack ships an update monthly, zZz every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | SleepTrack | zZz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (16 ratings)](https://appshunter.io/ios/app/sleeptrack-your-sleep-log/id987269039/reviews)** | [2.9 (11 ratings)](https://appshunter.io/ios/app/zzz-sleep-tracker-widget/id1586436109/reviews) |
| Number of ratings | **16** | 11 |
| Positive reviews | **37.7% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 6 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [a3team](https://appshunter.io/developer/324331321) | [Florian Schweizer](https://appshunter.io/developer/1142213239) |

## What reviewers say

### SleepTrack

[App page](https://appshunter.io/ios/app/sleeptrack-your-sleep-log/id987269039)

Easily log your sleep duration and wake times. Gain insights into your sleeping habits with detailed reviews and averages. The app offers guidance to help identify good or bad sleep patterns and integrates with Apple Watch and HealthKit.

**Highlights:** Track time in bed, Log go-to-bed and wake-up times, Review sleep duration, Trace sleeping habits, Detect good/bad sleep, Review sleep averages, Apple Watch integration

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Fast and efficient
- 🆓 No ads or subscriptions
- ✨ Clean and basic interface
- 📊 Good overview of sleep patterns

**What reviewers complain about**

- 🕰️ Only tracks time, not quality
- ⏱️ Essentially a manual timer
- ⌚ Doesn't utilize watch sensors
- 🤔 Requires manual start/stop
- ⏳ Outdated compared to modern apps

**Reported bugs**

- App not updated for newer iOS/watchOS versions
- Data not transferred to new phone
- Cannot see 'awake' button in the morning
- Sleep not recorded if less than 15 minutes
- App crashes or doesn't work

**Requested features**

- Option to change time format to AM/PM
- Ability to add notes (e.g., how felt next day)
- Option to record short naps
- Export data to CSV
- Sleep reminder


### zZz

[App page](https://appshunter.io/ios/app/zzz-sleep-tracker-widget/id1586436109)

Easily log your sleep with a single tap using home or lock screen widgets. Track time in bed, awake time, and actual sleep duration, syncing data with Apple Health for insightful analysis.

**Highlights:** One-tap sleep logging, Home and lock screen widgets, Tracks time in bed, awake, and sleep, Syncs with Apple Health, Siri and Shortcuts integration

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Tier | $0.99 | one-time |


## Frequently asked questions

### Is SleepTrack free?

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

### Is zZz free?

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

### Which has better reviews, SleepTrack or zZz?

SleepTrack is rated higher. SleepTrack averages 4.0 out of 5 from 16 ratings, while zZz averages 2.9 from 11 ratings.

### Do SleepTrack or zZz have ads?

Neither SleepTrack nor zZz shows ads.

### Which is updated more often, SleepTrack or zZz?

SleepTrack ships an update monthly, and zZz every 4 days. Most recently, SleepTrack was updated on October 24, 2026 and zZz on October 24, 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.*