# Hurtz - Tone Generator — Any frequency, 20 Hz to 20 kHz

> Any frequency, 20 Hz to 20 kHz (iPhone/iPad app by Baktash Fakhim Ghanbarzadeh.)

- Source: https://appshunter.io/ios/app/hurtz-tone-generator/id6798329796 (this page in markdown: same URL + `.md`)
- Developer: [Baktash Fakhim Ghanbarzadeh](https://appshunter.io/developer/6798329798)
- Category: Utilities, Music
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 20 MB
- Languages: American English
- Released: 2026-08-18
- Data updated: 2026-10-04
- User reviews in markdown: https://appshunter.io/ios/app/hurtz-tone-generator/id6798329796/reviews.md

## What is Hurtz?

Hurtz is a clean, precise audio tone generator. Dial in any frequency from 20 Hz to 20 kHz and hear it instantly — great for testing speakers and headphones, tuning instruments, or producing a steady reference tone.

FEATURES
• Any frequency, 20 Hz – 20,000 Hz, set by a slider or typed in exactly (with a log or linear scale).
• Four waveforms: sine, square, saw and triangle.
• Quick presets (100, 220, 440, 1k, 10k Hz).
• Nearest musical note read-out with cents (A4 = 440), handy as a tuning reference.
• Frequency sweep: glide smoothly from one frequency to another over a set time.
• Stereo mode: set a different frequency on the left and right channels, with a live difference (Δ) read-out. Useful for stereo and channel checks, and for binaural tones (use headphones).
• A live oscilloscope view of the waveform.
• Adjustable volume, and a large play/stop control.
• Works on iPhone and iPad.

Everything runs on your device. The app has no ads, no accounts, no tracking, and no internet access — it collects no data at all.

SAFETY
Sustained high-volume tones — especially very high or very low frequencies — can be uncomfortable and may risk hearing or small speakers. Start at a low volume.


## Version history (last 1 release)

### 1.0 — 2026-08-18

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-04.*