Company Steven Huang created these great apps:
RhythmiQ Metronome, Spiritus Level GE, Metronome`x, Metronome™, Guitar Tuner™, Violin Tuner™, Tuners™, Cello Tuner™, Mandolin Tuner™, Viola Tuner™, Tuner Perfect™, Banjo Tuners™, Ukulele Tuners™, bass tuner™, and others..