Vocalist - Vocalist is an all-in-one music utility.
Pitch-Chromatic Tuner - Tuner & Music Fitness Tracker
Vanido - Vanido is a singing coach in your pockets.
Tunable - Tone and chord generator, chromatic tuner and metronome for mobile.
TapNTune - TapNTune is a fully functional application that can help users tune their instruments with ease, and users can use it on their Mac system.
La-Vocal - Automate vocal exercises to practice easily & efficiently.