Proven Skincare - Personalized, data-powered skin care
Roon (Music Player) - Roon is a music playing application for audiophiles
SkinTheory - Control your acne. Scientifically.
Sayonara Player - Sayonara is a simple but nice audio player and holds a lot of features like a library, id3 tag...
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Pi MusicBox - Pi MusicBox is a great music platform where you can create songs and is the only streaming music player for Spotify, Google Music, Podcasts, SoundCloud, Webradio, and others.