# Frequency Counter Hz Tuner vs Optics Workbench

The clearest difference is ads: Optics Workbench at none against Frequency Counter Hz Tuner's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Frequency Counter Hz Tuner | Optics Workbench |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (6 ratings)](https://appshunter.io/ios/app/frequency-counter-hz-tuner/id6761234058/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | — |
| Monetization | Ad-supported | — |
| Size | 69 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) | [浚哲 彭](https://appshunter.io/developer/6787808310) |

## What reviewers say

### Frequency Counter Hz Tuner

[App page](https://appshunter.io/ios/app/frequency-counter-hz-tuner/id6761234058)

This app transforms your iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.

**Highlights:** Dominant frequency measurement (Hz), Instrument tuning with note and pitch display, Motor RPM analysis, 50/60 Hz mains hum detection, Measurement history and trend charts, CSV export of measurements

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

**In-app purchases:** none


### Optics Workbench

[App page](https://appshunter.io/ios/app/optics-workbench/id6794776366)

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Counter Hz Tuner free?

Frequency Counter Hz Tuner is free to download, with no in-app purchases.

### Is Optics Workbench free?

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

### Do Frequency Counter Hz Tuner or Optics Workbench have ads?

Frequency Counter Hz Tuner shows ads; Optics Workbench does not.

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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.*