Generate audio signal of different shapes with many parameters and options. You can generate frequencies between up to 20 kHz of audio signal. If you are curious student about sound after a physics class, music instruments hobbyist, a teacher, or an expert in audio equipment, this app is for your !
You can generate:
- Single type signal (sinusoidal, square, noise, etc)
- Sweep (chirp) signal (linear or exponential)
- Click: ON-OFF sine wave with any duty cycle and ON frequency
- Merged sound of any number of tones or sweeps

What’s New

Version 1.7.1

Finally the application now supports auto-saving changes you do in the app to restore it automatically when you open app again even if you close app completely, your settings are preserved in your phone storage.
It could especially be frustrating when you construct your merge signal and then you lose these changes after you close the app. Now, this has been resolved !

Ratings and Reviews

4.7 out of 5
3 Ratings

3 Ratings

K - Pasadena ,

Great app, with hidden benefit

This is a great app for generating tones but has a very useful feature: the ability to generate clicks with a custom duty cycle. In particular, the app can replicate the precise 40Hz tone shown to have therapeutic benefit in mouse models of Alzheimer’s Disease. Just navigate to ‘clicks’, select On-Off frequency of 40 Hz, On frequency of 2000 Hz and On-time of 0.001 sec (4%).

Docjedi ,

DC Offset

I searched through all the other signal generators to find one that contained a dc offset. This was the only one. Really great control on the app!


Ibrahim Al-Sammarraie
25.7 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.

Age Rating
Infrequent/Mild Medical/Treatment Information
In-App Purchases
  1. Tone Gen Pro Full $1.99


  • Family Sharing

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

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