High frequency sound simulator

Superb. Wonder if you could add 3.33 Hz , 33.3 Hz , 333 Hz etc. Just if it's easy to do. Thanks

The app makes what it says ' But I'm not an expert about any of this .It needs to express how to work it .I didn't know you could lock it . An instruction or two would be a lot of help .Otherwise having to press for the sounds to make removed my interest thinking that's the only way this works and That I had to guess .

Tried it out and it's making noise but that's all I know at the moment. It doesn't seem to effect the cockroaches so I'm gonna try a different frequency. Trying 16000. Update - tried several frequency. Does not work. Uninstalled.