# Frequency Sound Wave Generator vs HemiSync

The clearest difference is rating: Frequency Sound Wave Generator at 4.7 against HemiSync's 4.2. Frequency Sound Wave Generator also leads on ratings volume (87 vs 9) and device support (3 vs 1). HemiSync's advantage is ads (none vs shown) and review sentiment (100% vs 90%). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Frequency Sound Wave Generator sells 3 in-app purchases, starting at $1.99 per month and HemiSync sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Frequency Sound Wave Generator holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Frequency Sound Wave Generator has 87 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 90% of Frequency Sound Wave Generator's written reviews are positive against 100% of HemiSync's, so the app with the better star average is not the one people write more warmly about.

Frequency Sound Wave Generator ships an update monthly, HemiSync every 5 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Frequency Sound Wave Generator | HemiSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (87 ratings)](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398/reviews)** | [4.2 (9 ratings)](https://appshunter.io/ios/app/hemisync/id6751762821/reviews) |
| Number of ratings | **87** | 9 |
| Positive reviews | 90.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 169 MB | 61 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [David Krejci](https://appshunter.io/developer/1737377675) | [EngineZero](https://appshunter.io/developer/1573141529) |

## What reviewers say

### Frequency Sound Wave Generator

[App page](https://appshunter.io/ios/app/frequency-sound-wave-generator/id6478711398)

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

**Highlights:** Single and multiple frequency generation, Musical notes presets, Binaural beats, SFX sound generator, Sweep generator, Bass/Subwoofer sound test, DTMF tones

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO subscription | $1.99 | per month |
| Yearly Pro Membership | $9.99 | per year |
| Lifetime PRO membership | $19.99 | one-time |


### HemiSync

[App page](https://appshunter.io/ios/app/hemisync/id6751762821)

This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.

**Highlights:** Binaural beat and isochronic tone generation, Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma), Pre-configured audio presets, Session timer functionality, Solfeggio frequency options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


## Frequently asked questions

### Is Frequency Sound Wave Generator free?

Frequency Sound Wave Generator is free to download, with in-app purchases available.

### Is HemiSync free?

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

### Which has better reviews, Frequency Sound Wave Generator or HemiSync?

Frequency Sound Wave Generator is rated higher. Frequency Sound Wave Generator averages 4.7 out of 5 from 87 ratings, while HemiSync averages 4.2 from 9 ratings.

### Do Frequency Sound Wave Generator or HemiSync have ads?

Frequency Sound Wave Generator shows ads; HemiSync does not.

### Which is updated more often, Frequency Sound Wave Generator or HemiSync?

Frequency Sound Wave Generator ships an update monthly, and HemiSync every 5 weeks. Most recently, Frequency Sound Wave Generator was updated on October 13, 2026 and HemiSync on September 29, 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.*