Singscope - See your pitch analyzed as you sing
User Inyerface - A painful illustration of bad UX
La-Vocal - Automate vocal exercises to practice easily & efficiently.
Listening Singing Teacher - Listening Singing Teacher helps you to sing in tune and in rhythm.
Befront - Learn UX/UI design skills in practice with bite-sized tasks
Pitch-Chromatic Tuner - Tuner & Music Fitness Tracker