Giada - Giada is a free, minimal, hardcore audio tool for DJs, live performers and electronic musicians.
Pictogon - The fastest and easiest way to create interactive images
Loopy Pro - Loopy, the sophisticated, tactile live looper app that reinvents iPhone and iPad music making.
Spire - The first activity, breath & state of mind tracker
Group the Loop - Live Looping with usefull GUI, Verse/Chorus layer system, drummer, effects, etc...
Satellite Eyes - Changes your Mac wallpaper to a satellite map of your local