# iTuningFork vs Harmonic Explorer

The clearest difference is update cadence: Harmonic Explorer at every 7 months against iTuningFork's every 56 months. Harmonic Explorer also leads on price ($0.99 vs $1.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

iTuningFork costs $1.99 and Harmonic Explorer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iTuningFork ships an update every 56 months, Harmonic Explorer every 7 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iTuningFork | Harmonic Explorer |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[1.6 (5 ratings)](https://appshunter.io/ios/app/ituningfork-tone-generator/id600001658/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 7 months** |
| Monetization | Paid | — |
| Size | 3 MB | 2 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Philippe Zay](https://appshunter.io/developer/1200498230) |

## What reviewers say

### iTuningFork

[App page](https://appshunter.io/ios/app/ituningfork-tone-generator/id600001658)

This app generates various audio waveforms and frequencies for tuning musical instruments or testing electronic equipment. It offers selectable waveforms, adjustable frequencies, and features like looping tones and real-time volume/timbre editing.

**Highlights:** Selectable waveforms (sine, square, triangle, saw, white noise), Frequency range from 5Hz to 22000Hz, Instrument-specific tone scales, Looping tones with adjustable timeout, Real-time volume and timbre editing, 9-octave tone keyboard, Ultrasonic multifrequencies for pest repellent

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

**In-app purchases:** none


### Harmonic Explorer

[App page](https://appshunter.io/ios/app/harmonic-explorer/id6747025974)

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

**In-app purchases:** none


## Frequently asked questions

### Is iTuningFork free?

iTuningFork costs $1.99, with no in-app purchases.

### Is Harmonic Explorer free?

Harmonic Explorer costs $0.99, with no in-app purchases.

### Do iTuningFork or Harmonic Explorer have ads?

Neither iTuningFork nor Harmonic Explorer shows ads.

### Which is updated more often, iTuningFork or Harmonic Explorer?

iTuningFork ships an update every 56 months, and Harmonic Explorer every 7 months. Most recently, iTuningFork was updated on November 1, 2026 and Harmonic Explorer on October 30, 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.*