Company Positive Grid Inc created these great apps:
JamUp, JamUp Pro, AccuTune - Guitar Tuner, Jam Player - Time and Pitch Audio Player, Beats Metronome, Tension Drum Tuner, BIAS AMP 2 - for iPad, BIAS AMP 2 - for iPhone, Final Touch - Audio Mastering, BT Bluetooth MIDI Pedal Editor, BIAS FX - Guitar Amp & Effects, Pickup!, BIAS Pedal, X Drummer: Songwriting Tool, GoBeats, Guitar Lessons | Spark EDU, Spark: Chords, Backing Tracks, BIAS FX 2 - #1 Guitar Tone App, Spark Amp - 超智能吉他音箱, and others..
