This 303 comes with a replica of the same controls you would find on a 303 original plus two drum machines one 808 clone and one 909 clone also with the same controls and look of the originals. Just one effect a delay, and an overall groove function.
The controls that you want to tweak feels pretty responsive even if they could have been a little bit larger,
You can also tap out the tempo which is really useful if you want to sync in live with some other sound source.
One of the main points of the application is that to use it in conjunction with the bigger application that is the Web based DAW called surprise- Audiotool!
In the application you have the possibility to upload your work directly into the bigger Audiotool workspace on the net
Audiotool is very interesting and being for free you always have a pretty complete DAW as long as you have access to internet.The problem if you don't have internet and want to render to wav file is that it is not possible without first uploading your work into Audiotool.
Or have the possibility to record into another device, and cut out the parts you want.
To my ears it sounds pretty good but on the tablet that got used for the testing was crackling slightly and don't know if that is because of application or the tablet, so that would be a problem if you want to use the application in a live situation... but even with some crackling once in a while it is worth the buy if you like the sound as it is possible to sample just the good parts.
Recorded two short loops being tweaked so you get an idea of the sound but the end of the week there will be a more complete comparison inbetween the different 303 apps.
And am skipping the drums as it only considers the 303 emulations.