For some of you readers that reads this with confusion...
These waveforms are very short samples of sounds that can be loaded into certain synthesizers and samplers to create a wide variety of tones when looped. Adventure Kid have dedicated a lot of time making over four thousand of these but for some reasons tuned them to D.
Rej the developer of Caustic did convert them for use in the SubSynth a long time ago (am not sure if he re--tuned them though and am too lazy to check it right now...) and can be found on the Caustic website:
The apps that can use them is any sampler that can load and loop samples like the sampler in SunVox for example.
To download the re-tuned waveforms (for free):