# HZ Frequency Generator App vs Reverse Play ™

The clearest difference is in-app purchases: Reverse Play ™ at none against HZ Frequency Generator App's 4. HZ Frequency Generator App's advantage is rating (5.0 vs 4.6) and update cadence (every 3 weeks vs every 5 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. HZ Frequency Generator App sells 4 in-app purchases, starting at $5.99 per 7 days. Reverse Play ™ asks for nothing beyond the download.

HZ Frequency Generator App holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 10 respectively.

HZ Frequency Generator App ships an update every 3 weeks, Reverse Play ™ every 5 months. The most recent releases landed on September 13, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | HZ Frequency Generator App | Reverse Play ™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/hz-frequency-generator-app/id6756234098/reviews)** | [4.6 (10 ratings)](https://appshunter.io/ios/app/reverse-play/id6757998454/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 26 MB | 2 MB |
| Requires iOS | 18.5 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dheeraj Sharma](https://appshunter.io/developer/1679711674) | [胜君 夏](https://appshunter.io/developer/1506438932) |

## What reviewers say

### HZ Frequency Generator App

[App page](https://appshunter.io/ios/app/hz-frequency-generator-app/id6756234098)

This app uses science-based sound therapy with curated playlists for sleep, focus, and meditation. Enhance your mental wellness with healing frequencies and custom sound experiences. Enjoy features like a sleep timer and high-quality audio for a balanced mind.

**Highlights:** Science-based healing frequencies, Curated playlists for sleep, focus, meditation, Customizable categories and playlists, Adjustable sleep timer up to 12 hours, High-quality audio, Intuitive dark-themed interface

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $5.99 | per 7 days |
| Monthly Subscription | $14.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Lifetime Premium | $99.99 | one-time |


### Reverse Play ™

[App page](https://appshunter.io/ios/app/reverse-play/id6757998454)

Alter your voice with a variety of fun effects and instantly play it backward. Save and share your creations with friends easily.

**Highlights:** Reverse voice playback, Eight voice effects, Save favorite clips, Share with friends, Instant voice modification

**In-app purchases:** none


## Frequently asked questions

### Is HZ Frequency Generator App free?

HZ Frequency Generator App is free to download, with in-app purchases available.

### Is Reverse Play ™ free?

Reverse Play ™ is free to download, with no in-app purchases.

### Which has better reviews, HZ Frequency Generator App or Reverse Play ™?

HZ Frequency Generator App is rated higher. HZ Frequency Generator App averages 5.0 out of 5 from 5 ratings, while Reverse Play ™ averages 4.6 from 10 ratings.

### Do HZ Frequency Generator App or Reverse Play ™ have ads?

Neither HZ Frequency Generator App nor Reverse Play ™ shows ads.

### Which is updated more often, HZ Frequency Generator App or Reverse Play ™?

HZ Frequency Generator App ships an update every 3 weeks, and Reverse Play ™ every 5 months. Most recently, HZ Frequency Generator App was updated on September 13, 2026 and Reverse Play ™ on August 11, 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.*