Recommended for anyone looking for some glitchy/experimental sound manipulations to play with. And yes for free with no publicity!
Google Play info:
Start making the grainy soundscapes of your dreams with this sound-mangling granular synthesizer. Granular synthesis takes grains from existing sounds and spits them out in new combinations to make new sounds. Use your finger to play your own audio files or just use the ones that come with the app.
https://play.google.com/store/apps/details?id=com.FormerSpaceMarineSoftware.Granular