Cog is described as 'Free, open source audio player for macOS supporting mainstream and obscure formats, gapless playback, scrobble, CUE sheets, album art, EQ, and streaming' and is a Audio Player in the audio & music category. There are more than 25 alternatives to Cog for a variety of platforms, including Mac, Windows, Android, iPhone and Linux apps. The best Cog alternative is foobar2000. It's not free, so if you're looking for a free alternative, you could try foobar2000 or Winamp. Other great apps like Cog are Light Crime, Vox Music Player, Plexamp and Museeks.