It is not very fun to listen to because the idea is to hear the quality of sound, this have been slightly hard as there is not one neutral position that even sounds similar inbetween the applications.
So the loop is as follows C note low, middle then up with slide and then middle with slide.
The sound samples start with a saw waveform in the neutral position that is the position pointing up on all of them-
from there the frequency and resonance get turned upwards then downwards in a random fashion- after this there is a small break and the same thing gets done with the Square waveform.
Don't touch any other parameters and there is no effects used at all.
To get a better feel for the different applications is maybe to just listen to the first part where the saw wave are used and the frequency go up together with the resonance.
One other thing that would be nice is if you as a reader are using any of these applications please write me some of your own observations to email@example.com or directly in the comments...
one a version of the square waveform and one that has a real name that escapes me,
but looks like a relaxed saw waveform...
in my possession was thinking that it could be interesting to at least hear some hardware too.
Have used the same methodology as with the applications.
So in the end what is the best ones-
well counting out Audioid, Square one and the Novation Basstation to me sound wise would be Audiotool sketch-
Then think that RD3 HD have a slightly bigger range in frequency and Resonance than Caustic, but the sound can be quite interesting with Caustic when you start to play with the controllers in conjunction with the pulsewidth.
The other considerations is of course what else is included in the apps and what you are going to use it for.
If you are using Audiotool the bigger Internet DAW it feels like it would be weird not to have Audiotool Sketch as they are totally integrated with each other. Plus that if the device is crackling slightly as it does for me it is perfect to render from the Internet DAW with a cleaner sound.
Then is the question if you want to use it for composing or for live playing.
For live groove boxing the answer is RD3 HD as it is easy to tweak it has two 303's and ten drum kits (not tunable), effects that you can click on and off right on the side of the 303's and that you can also jump to, to control X-Y style and finally is that if you use ten inch tablet it can go portrait mode so you can see three modules at the same time to really switch things up fast and you can also record the whole performance right from the app.
But for composing you would have to go Caustic for too many reasons to mention here and in the end the difference in sound from RD3 HD is not really too big...
and in Caustic you can decide note length and it has more twang to the slide.
Think in the end of all this will probably end up in doing some more experimentation but would reach for RD3 HD or Caustic but being more of a composer guy than a DJ live style guy the convenience is with Caustic.
Well now after all these chuppililupps we should take a video break and then go outside or something...
Ceephax- Camelot Science.