I have tried all options to stop Spotify opening at startup 1) Option clicking in dock 2) Login items 3) Spotify application preferences None of them works. To me it is egregiously invasive to have an app behave in this way, so I am going to delete it. I am then going to unsubscribe from Spotify, because if they are invasive in one way they are likely to the invasive in others. Don't behave like this and expect to get away with it. You forget who the customer is.