Momixa - Pick two songs and get the perfect mix
Move to Apple Music - Convert your Spotify playlists for Apple Music
Music Suggestions Ninja - Enter an artist's name & find similar, lesser known artists
SicMu Player - SicMu Player is an application that enables users to play audio files on their devices easily.
Boil the Frog - Create a seamless playlist between any two artists
Poolsuite™ - The super-summer music player