Sick of all the music you have on your iPhone, and not sure what to listen to next? There’s an app for that! The WhoSampled app will look at the music you have, and suggest tracks to listen to based on what you already like. It gives you access to a library of music through YouTube, Daily Motion and SoundCloud that samples, remixes, or covers the songs in your library. A whole new take on song recommendations all for $2.99.