# zzZ White Noise Sound Machine vs Step Tracker 3D

The clearest difference is price: Step Tracker 3D at Free against zzZ White Noise Sound Machine's $0.99. Step Tracker 3D also leads on rating (5.0 vs 3.0) and review sentiment (100% vs 75%). zzZ White Noise Sound Machine's advantage is iOS requirement (10.0 vs 17.2). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Step Tracker 3D is free to download; zzZ White Noise Sound Machine costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Step Tracker 3D holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 75% of zzZ White Noise Sound Machine's written reviews are positive against 100% of Step Tracker 3D's.

zzZ White Noise Sound Machine ships an update every 4 months, Step Tracker 3D every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | zzZ White Noise Sound Machine | Step Tracker 3D |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/zzz-white-noise-sound-machine/id1504437675/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/step-tracker-3d/id6740173192/reviews)** |
| Number of ratings | 2 | **5** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 211 MB | 4 MB |
| Requires iOS | **10.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Mohamed Ezzat](https://appshunter.io/developer/598710614) | [Nikolay Surin](https://appshunter.io/developer/1612846901) |

## What reviewers say

### zzZ White Noise Sound Machine

[App page](https://appshunter.io/ios/app/zzz-white-noise-sound-machine/id1504437675)

This app offers a curated collection of white noise, nature sounds, ASMR, and radio stations to aid sleep, relaxation, focus, and baby soothing. It features background playback and an auto-stop timer for customized sessions.

**Highlights:** Extensive sound library, Background playback, Auto-stop timer, Relaxation radio stations, ASMR sound collection, Baby sleep sounds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Step Tracker 3D

[App page](https://appshunter.io/ios/app/step-tracker-3d/id6740173192)

Visualize your daily activity with interactive 3D charts. Track your progress, set fitness milestones, and gain personalized insights. Integrates seamlessly with Apple Health while prioritizing your privacy.

**Highlights:** Interactive 3D step visualizations, Personalized progress trends, Fitness milestone tracking, Seamless Apple Health integration, On-device data processing, Privacy-focused design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is zzZ White Noise Sound Machine free?

zzZ White Noise Sound Machine costs $0.99, with no in-app purchases.

### Is Step Tracker 3D free?

Step Tracker 3D is free to download, with no in-app purchases.

### Which has better reviews, zzZ White Noise Sound Machine or Step Tracker 3D?

Step Tracker 3D is rated higher. zzZ White Noise Sound Machine averages 3.0 out of 5 from 2 ratings, while Step Tracker 3D averages 5.0 from 5 ratings.

### Do zzZ White Noise Sound Machine or Step Tracker 3D have ads?

Neither zzZ White Noise Sound Machine nor Step Tracker 3D shows ads.

### Which is updated more often, zzZ White Noise Sound Machine or Step Tracker 3D?

zzZ White Noise Sound Machine ships an update every 4 months, and Step Tracker 3D every 2 months. Most recently, zzZ White Noise Sound Machine was updated on October 29, 2026 and Step Tracker 3D 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.*