Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Shuffle - One Phone, Multiple Numbers
projectM - projectM is an LGPL'ed reimplementation of Milkdrop under OpenGL.
Bullet - Share captioned video snippets of podcasts from any app
MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
Blinkist - Key insights from 6,000+ bestselling books and podcasts