iPhone & Android Utility
Frequency Generator
All frequency sound generator tools in one app: tone generation, sound tests, musical tuning, binaural beats, and sweep generation for the full 20Hz-20000Hz hearing range.







High-quality tone generation tools, all in one app
Single & multi-frequency generator
Generate one tone or several at once, with decimal precision.
Musical note presets
Tune instruments quickly with standard musical note frequencies.
Binaural beats
Relax with different frequencies played in each ear.
Sweep generator
Sweep smoothly from ultrasound to infrasound to test your audio.
Bass & subwoofer test
Test the low end of your speakers with dedicated bass tones.
DTMF & SFX tones
Generate DTMF tones and clean sound effects on demand.
Commonly used for
- Testing your own hearing — the human ear can hear roughly 20Hz to 20,000Hz.
- Playing or producing music, or tuning instruments with musical note presets.
- Testing speakers for high-end (treble) and low-end (bass) response.
- Exploring how your audio handles a sweep from ultrasound to infrasound.
- Relaxing with binaural beats, or finding a tone to help mask tinnitus.
Note: phone speakers aren't high-fidelity audio sources and can vary in quality — turn the volume down when generating high frequencies to avoid discomfort.