Vocalist - Vocalist is an all-in-one music utility.
Vanido - Vanido is a singing coach in your pockets.
Singscope - See your pitch analyzed as you sing
Digital Library - Organize your books, track your reading and write reviews
Pitch-Chromatic Tuner - Tuner & Music Fitness Tracker
Befront - Learn UX/UI design skills in practice with bite-sized tasks