# Frequency Generator vs Hz Lab

The clearest difference is in-app purchases: Frequency Generator at none against Hz Lab's 1. Frequency Generator also leads on update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hz Lab sells 1 one-off in-app purchase. Frequency Generator asks for nothing beyond the download.

Frequency Generator ships an update weekly, Hz Lab every 2 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Frequency Generator | Hz Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 4 MB | 2 MB |
| Requires iOS | 17 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nhat Linh Dang](https://appshunter.io/developer/1857899120) | [Daishi Sugawara](https://appshunter.io/developer/6783803841) |

## What reviewers say

### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-sound-test/id6785086354)

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

**In-app purchases:** none


### Hz Lab

[App page](https://appshunter.io/ios/app/hz-lab-frequency-generator/id6802062892)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hz Lab Pro | $1.99 | one-time |


## Frequently asked questions

### Is Frequency Generator free?

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

### Is Hz Lab free?

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

### Do Frequency Generator or Hz Lab have ads?

Neither Frequency Generator nor Hz Lab shows ads.

### Which is updated more often, Frequency Generator or Hz Lab?

Frequency Generator ships an update weekly, and Hz Lab every 2 weeks. Most recently, Frequency Generator was updated on October 27, 2026 and Hz Lab on October 31, 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.*