Comes with four waveforms- Sine, Two different square waves and one saw wave.
You can control the octaves and pitch with the bottom controllers-
Which are easier to reach if you hold the device upside down at least if you are using a phone ( and you are playing at the same time ).
Then you have access to the four corners around the speaker that you can program with different effects.
The application is responsive so it is easy to test and play different things out.
When it got tested was thinking that it is good for direct recording on top of another recording to get the groove right and that is exactly what they are doing in the demonstration video.
Yes this will be used sooner or later.
Master the Bass
P.s- Audacity is a free Sound editing program for P.C / Linux / MAC
Link to Audacity: