Simple and elegant tone generator with two Oscillators and one Noise generator, each with individual lowpass filters. The oscillators also has panning, and can produce one of four waveforms: sine, triangle, sawtooth and square.

The oscillator frequencies can be tuned precisely in Hz or fractional MIDI note pitch.

Use it for testing purposes or to make old-school electronic drone music.

Supports Audiobus and Inter-App Audio: Stream the audio output in real time into other compatible apps!

What’s New

Version 1.3.3

This app has been updated by Apple to use the latest Apple signing certificate.

Fix oscillator panning bug.

Ratings and Reviews

4.3 out of 5
44 Ratings

44 Ratings

hamvgq ,

Audio generator

Works great. I checked the flatness all the way, and from 20 Hz to 17 kHz, sine-wave, and it's flat, and from 17 to 20 kHz it drops 2.1 dB. Not bad. My only complaint is that from 17-20kHz it's only about 1/8" and my manly finger almost cannot navigate very well. I do recommend this app.

gnostic student ,

Best tone generator for testing audio equipment

I am using several tone generator apps to test a home built valve guitar amplifier. After trying several, this one is by far the best. Here’s why:

1. Log scale frequency sliders. This is so important. Down near 20 Hz, a difference of 1 hz is a big difference and you need precision of less than one Hz. Up above 2000 Hz a 1Hz difference is not very significant and you need to sweep quickly. That’s why a tone generator must have log scale frequency. Most tone gen apps don’t have it but this one does.

2. dB scale gain. Similar to the log scale frequency, if you don’t have dB scale volume control then you really can’t control the volume at the low end. This app has it.

3. More than one oscillator. If you are testing an amplifier you may want to see how it responds to a combination of a low and high frequency tone. This app does that. Most others do not.

SenhorLampada ,

Simple and direct, but not without depth

This is an awesome oscillator with loads of options, but still simple to use.
It's always useful when I need to run some types of tones through my hardware, like Monotrons or Electribes, and trigger gates and such... And it's free... so... no-brainer: get it! :D

App Privacy

The developer, Kymatica AB, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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