This is the all-new MultiTone Generator! An amazingly flexible and powerful frequency generator!

Works with Audiobus and Audiobus Remote!

Upgrade to PRO and CREATE up to 16 tone combinations. Play them individually or combined.

PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth.

PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency).

Use the SWEEP REPEAT / WOBBLE function.

Play back white and pink NOISE.

Fully CUSTOMIZABLE Frequency Min-Max ranges and Sweep time range.

The MultiTone Generator is AMAZINGLY INTUITIVE and SIMPLE!

What’s New

Version 1.3.0

- new "Play All / Play Sets" menu available. Either play ALL tones at once. Or select individual tones per each of the available sets and play them separately.
- new sidebar menu with links to Settings, Play All, Info/Disclaimer, More Apps, App Rating
- native support for iPad 11" and iPad 12.9"

Ratings and Reviews

4.7 out of 5
53 Ratings

53 Ratings

halfcack ,


I have recently acquired tinnitus. It seems directly related to the use of Kratom which has killed all pain and panic disorder since an accident in 1993. Kratom also knocked down the meds I’ve been on for ten years within five months.

The tone is a C9 or C10 if a piano could reproduce it. C9. I matched it to either C9 or C10 on the using the app.

I’m getting close to the middle of C9 by going up in thousandths. I am getting close.

The app is perfect. The features cover all my uses. I tried the three top apps. Even the lite version is feature laden.

When I finally determine the exact C9 sine wave's frequency. I will know the exact negative wave that will cancel it out.

The app already makes it go away for a few minutes. Only use it with care for this purpose. A little at a time. Short sessions.

If you could invent an app that plays negative sine waves, you would have the cure for tinnitus. The negative wave will make tinnitus disappear. They cancel each other out.

Then, a small ear piece that fits inside the ear, which would be cheap to make, millions would beat a path to your door.

Thank you so very much.

Paralleluniverse1234 ,

Valuable app; one request

I use this app to experiment with psychoacoustics and it works well for my purposes. Since the app already includes a graphic representation of each wave, it would be nice to see the summation of multiple waves in a single waveform. If you get a chance, that would be a feature to add. Keep up the good work!

Atlas Roufas ,

Good but risky

Fairly good, but dangerous if working with ultrasonic tones. If you forget a tone playing it will keep playing even if app is minimized, and even if you start other audio apps. It’s too easy to end up blasting ultrasonics into your ears if you forget it playing and then decide to listen to an audiobook, for example. An option for tones to auto stop after X seconds would be welcome. Or if tones automatically stopped on app minimize, that would be good too.


Thomas Gruber
15 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Thomas Gruber
In-App Purchases
  1. Enable all Features and Remove all Ads $2.99


  • Family Sharing

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

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